Volume 15 - 2024 | https://doi.org/10.3389/fimmu.2024.1450600
Rissen) is an emerging causative agent of foodborne diseases
The current emergence of antibiotic resistance makes necessary alternative therapeutic strategies
we investigated the potential of a phage-resistant strain of S
Rissen (RR) as a tool for developing an effective lipopolysaccharide (LPS)-based vaccine
The LPS O-antigen is known to play critical roles in protective immunity against Salmonella
the high toxicity of the LPS lipid A moiety limits its use in vaccines
we demonstrated that the acquisition of bacteriophage resistance by S
Rissen leads to structural modifications in the LPS structure
we characterized the LPS from phage-resistant strains as a smooth variant bearing under-acylated Lipid A portions (penta- and tetra-acylated forms)
We then combined RT-qPCR and NMR-based metabolomics to explore the effects of phage resistance and LPS modification on bacterial fitness and virulence
we conducted in vivo studies to determine whether lysogeny-induced remodeling of LPS affects the host immune response
Results revealed that the under-acylated variant of LPS from RR attenuates the inflammatory response in BALB/c mice
while eliciting a specific antibody response that protects against S
our findings suggest that phage resistance
may offer a novel strategy for reducing LPS toxicity
highlighting its potential as a promising biological approach for developing LPS-based vaccines against Salmonella infections
making the development of a successful vaccine a pressing challenge
makes it challenging to develop safe vaccines
In a previous study, we demonstrated that LPS from the bacteriophage-resistant strain of S. Rissen (RR) induces a reduced inflammatory response in vitro compared to the LPS produced by the bacteriophage-sensitive strain of S. Rissen (RW) (25, 26)
and attributed this result to Lipid A modification
The goal of the present study was to validate our hypothesis
proposing bacteriophage-resistance as an alternative strategy to traditional chemical
to obtain under-acylated variants of Lipid A
Morons are prophage genes encoding proteins that enhance bacterial fitness through different mechanisms (28). They can increase bacterial virulence, promote resistance to environmental stressors, and contribute to phage resistance via Superinfection exclusion (Sie) proteins (25, 28). These proteins prevent further infections by the same or closely related phages, inhibiting phage genome entry into bacterial cell (29)
Salmonella phages use LPS to enter host cells and establish a successful infection. Therefore, as part of the Sie mechanism, Salmonella may acquire prophage genes that modify the LPS structure (30)
we tested the potential of RR to reduce the LPS reactogenicity through Lipid A modification
proposing it as an alternative approach for developing LPS-based vaccines against Salmonella infections
We found that the acquisition of the phage-resistant phenotype induces metabolic and physiological changes in RR
which alter the host-pathogen interaction by remodeling the LPS acylation pattern
we demonstrated that Lipid A modification in RR-LPS impairs the TLR4 signaling
weakening the innate immune response while mediating early protection in BALB/C mice infected with S
our findings offer a promising strategy for developing effective LPS-based vaccine to prevent Salmonella infection and may pave the way for the development of broad-spectrum vaccines against other Gram-negative bacteria
All mouse experiments were carried out in accordance with the guidelines for the Care and Use of Laboratory Animals of the European Community (Legislative Decree n
Number: 86/609/CEE) was approved by the Committee on the Ethics of Animal Experiments of the University of Naples and authorized from the Italian Ministry of Health
The bacteriophage-sensitive S. enterica ssp. enterica serovar Rissen (RW) was isolated from food products and characterized by Istituto Zooprofilattico Sperimentale del Mezzogiorno (Portici, Naples, Italy), using standard conventional methods (31). The bacteriophage-resistant S. Rissen (RR), instead, was obtained from the RW strain following selection for resistance to phage Ф1, as described by Papaianni et al. (25)
Both RR and RW strains were grown in Luria-Bertani (LB) medium (ThermoFisher Scientific
The enumeration of phage particles, expressed as plaques forming colony (PFU/mL), was determined by performing the Double Agar Layer (DAL) method (32). Plaques were re-isolated, propagated and stored in SM buffer (NaCl 100 mM, Tris-HCl 50 mM, MgSO4 8 mM; pH 7.5) at + 4°C, or in liquid nitrogen with DMSO 5% (v/v) to avoid loss of phage titer (33)
The genome assembly and annotation of the RR strain can be accessed via European Nucleotide Archive under the following accession number GCA_963679805
The human gastric adenocarcinoma cell line AGS was kindly provided by Prof
Alessandra Tosco from the University of Salerno (Fisciano
Cells were grown in Dulbecco’s Modified Eagle Medium (DMEM) high glucose (Microtech)
supplemented with 10% fetal bovine serum (FBS; Microtech)
1% penicillin/streptomycin (Microtech) and 1% L-glutamine (Microtech) and maintained at 37°C
The cell line was authenticated through the short tandem repeat (STR) analysis and periodically tested for mycoplasma contamination
The primers for detecting SieB gene were: reverse primer 5’-CAAACAAATCCCGAACGACT-3’; forward primer 5’-ATGGTGGCAGGAGTTAATGC-3’
Dried cells of RR and RW S. Rissen strains were extracted by PCP (phenol:chloroform:petroleum ether 2:5:8) and by water/phenol method as already reported (35)
The linkage positions of the monosaccharides were determined by GC-MS analysis of the partially methylated alditol acetates (PMAAs). Samples (1 mg) were methylated with CH3I (100 µL) and NaOH powder in DMSO (300 µL) for 20 h (39)
The products were totally hydrolyzed with 2 M TFA at 120°C for 2 h
and acetylated with Ac2O and pyridine (50 µL each
All the derivatives were analyzed on Agilent Technologies gas chromatograph 7820A equipped with a mass selective detector 5977B and an HP-5 capillary column (Agilent
AMGs and FAMEs analyses were performed using different temperature programs
the AMGs analysis started at 140°C for 3 min
followed by an increase from 140°C to 240°C at 3°C/min; while the FAMEs analysis started at 140°C for 3 min
followed by an increase from 140°C to 280°C at 10°C/min
PMAA analysis was performed using a temperature program that began at 90°C for 1 minute
then increased from 90°C to 140°C at 25°C/min
and 200°C to 280°C at 10°C/min
with a final hold at 280°C for 10 minutes
The supernatants obtained after mild acid hydrolysis of the entire LPSs (19.5 mg and 15 mg from RR-LPS and RW-LPS
respectively) were fractionated on a Biogel P-10 column (Biorad
0.5 mg of each sample was treated with 1 mL of 1.25 M HCl/CH3OH for 20 h at 80°C
The crude mixtures were extracted twice with hexane
The analyses were performed on Agilent Technologies gas chromatograph 7820A equipped with a mass selective detector 5977B and an HP-5 capillary column (Agilent
A temperature program starting at 140°C for 3 min and followed by an increase from 140°C to 280°C at 10°C/min was used for fatty acid analyses
LPS isolated from both RR and RW (38) were purified according to Stephens et al. (42)
LPSs were resuspended in endotoxin-free water containing triethylamine (TEA; 0.2%)
deoxycholate (0.5%) and water-saturated phenol (500 μL)
The obtained solution was vortexed for 5 minutes
incubated on ice for 5 minutes and then centrifugated (10,000 g for 2 minutes at 4°C)
The upper phase (aqueous) was transferred into a fresh tube
supplemented with 75% ethanol and 30 mM sodium acetate
precipitated for 1 hour at -20°C and lastly resuspended in TEA
The RR and RW-LPS were coupled to Rat Serum Albumin (RSA; purchased from Sigma Aldrich) using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC), following the protocol described by Masoud, 2007 (43)
purified LPSs (10 mg) were dissolved in sterile distilled water (1 mL)
and the solution was mixed with 500 μL RSA (10 mg/ml)
The mixture was stirred on an automatic shaker at room temperature for 3 h
the pH was adjusted to 7 and the mixture was centrifuged (1000 rpm for 10 minutes)
The supernatants were purified by using a Sephadex G-75 column and eluted with phosphate buffered saline (PBS)
Eluates containing both LPS and protein were pooled and dialyzed against distilled water at 48°C
RW and RR strains were obtained as indicated above (see the S. Rissen strains and culture conditions paragraph). RWΦ1- and RSΦ1- strains were derived from the RW and RR strains as described by Papaianni et al. (25)
All strains were grown in LB medium and centrifugated when bacteria reached the exponential growth phase and the same cell density
and the supernatant filtered by 0.22 μm filters (Millipore
Sterile supernatants were quenched in liquid nitrogen for 10 minutes - in order to stop metabolic activities in the filtrates - and stored at -80°C
Ten biological replicates of growth culture of each strain were prepared
Uninoculated growth medium was used as negative control
To achieve the NMR-based footprinting metabolomics analysis
RSΦ1- and RWΦ1- were rapidly defrosted and 630 μL of each fluid sample were pipetted into eppendorfs containing 70 µL of D2O
containing sodium 3-(trimethylsilyl)-2,2,3,3-tetradeuteropropionate (TSP) 0.1 mM (for chemical shift reference)
and sodium azide 3 mM as antimicrobial agent
HSQC resonances spectra were referenced to the lactate doublet (βCH3)
assumed to resonate at 1.33 ppm for 1H and 20.76 ppm for 13C
1H NMR spectra of the O-chains were recorded by using a Bruker 600 MHz spectrometer equipped with a cryo-probe
The samples (3 mg) were dissolved in 550 μL of D2O and the spectra were calibrated with external acetone (δH = 2.225 ppm; δC = 31.45 ppm)
such as the Human Metabolome Database (HMDB)
Statistical significance was determined by one-way analysis of variance (ANOVA) followed by Bonferroni post hoc correction
p values < 0.05 were considered statistically significant
The susceptibility of erythrocytes to RR or RW-LPS was evaluated by performing the hemolysis assay on fresh human blood
Erythrocytes were isolated from blood of healthy donors (n=9)
in accordance with the principles of good clinical practices reported in the Declaration of Helsinki and under the approval of the Ethics Committee of Villa Betania Hospital
blood samples were obtained from the arm’s peripheral vein and collected in heparin tubes
An informed consent was obtained from all participants
As reported by Greco et al. (50)
whole blood was centrifuged at 1,500 x g for 5 minutes and the supernatant (plasma) discarded
Aliquots of 5 x 107/mL red blood cells were resuspended in PBS containing different concentrations of RR or RW-LPS (from 1 to 500 μg/mL)
incubated at 37°C for 1 hour and centrifuged at 1,500 x g for 5 minutes
and the released hemoglobin measured at 405 nm
The percentage of hemolysis was calculated as the ratio of the untreated control
Animal experiments were carried out on female BALB/c mice aged 8 to 10 weeks - purchased from Charles River Laboratories (Wilmington
USA) - at the animal facility of the University of Naples “Federico II”
Animal were housed in static microisolator cages
Mice were randomly assigned to the treatment groups
The sample group allocation was not blinded to the investigators
Six mice per group were infected intraperitoneally with 100 μL of sterile phosphate-buffered saline (PBS), containing grown doses (103, 105, 107 and 109 CFU/animal) of RR or RW strains. Control group, instead, received 100 μL of PBS only. Mice were observed for 21 days, in order to evaluate clinical manifestations and death. Lethal Dose-50 (LD50) was calculated according to the Reed and Muench method (51)
LPS purified from both RR and RW strains was administrated intraperitoneally in a dose responsible for endotoxemia (20 mg/Kg body weight) (52) and mice (6 per group) were observed 2
in order to evaluate body temperature and weight
LPS was dissolved in PBS (100 μL per animal) and the control group was injected with PBS only
Mice that lost more than 20% of their starting body weight or decreased their starting body temperature more than 4°C were euthanized
Data were collected using the Bio-Plex 200 System (Bio-Rad) and analyzed by Bio-Plex Manager™ software
was determined by the single target ELISA assay
using the mouse IFN-β ELISA kit (Elabscience)
according to the manufacturer’s instructions
Samples were read using the 96-well plate reader (NeoBiotech)
Cytokines were measured at different times and their concentration was determined based on the automatically calculated standard curve
The first group was injected intraperitoneally with the RR-entire LPS
while the second one with the RW-entire LPS
purified and conjugated with Rat Serum Albumin (RSA) as reported above (“LPS purification for biological studies” and “LPS conjugation for mice immunization”)
they were dissolved in sterile PBS (pH=7.4) and administrated twice at two-weeks interval at the final concentration of 10 μg (100 μL)
The third group (control group) was injected with sterile PBS only (100 μL)
Blood samples from the tail vein and feces were collected on day 4
21 and 28 to determine the adaptive immune response and evaluate the cross-protective ability conferred by the RR-LPS immunization
96-well plate was coated with RR or RW purified LPS (5 µg/mL) in 100 µL/well coating buffer (Na2CO3 0.64 g and NaHCO3 3.7 g) and incubated overnight at + 4°C
wells were blocked with 200 µL/well of wash-buffer containing 2% bovine serum albumin (BSA) and the plate was incubated for 1h at 37°C
Sera or fecal supernatants were diluted 1:100 in blocking buffer (100 µL/well) and incubated at 37°C for 1 h
100 µL of the HRP-conjugated goat anti-mouse IgG (1:2,000; Invitrogen)
IgA (1:10,000; Abcam) or IgM (1:1,000; Invitrogen) were added to each well and incubated at 37°C for 30 min
the plate was filled with 100 µL/well of the indicator substrate (TMB; 1 mg/mL to each well) and incubated at room temperature for 10 min in the dark
After incubation the enzymatic reaction was stopped by adding 100 µL/well of stop solution (1M sulphuric acid) and 15-30 minutes later the optical density (OD) was recorded at 450 nm with an automatic ELISA reader (NeoBiotech)
The assay was performed in triplicate and each incubation period was followed by multiple washings using PBS containing Tween 20 (0.05%)
The standard curve was used to accurately determine the concentration of target LPS-immunoglobulins
The efficacy of the RR-LPS immunization was evaluated by using a mouse model of salmonellosis producing disseminated infection after intraperitoneal injection of the bacteriophage-sensitive Salmonella Rissen (RW)
mice immunized as detailed above (see the “Immunization” paragraph) were infected with the RW strain (109 CFU/100 μL) two weeks after the last immunization via the intraperitoneal route and the bacterial burden in the spleens was determined
mice were sacrificed 3 days post-infection and spleens were aseptically removed
Spleens (1 g) were homogenized in 1 mL of phosphate buffer saline (PBS) solution and serial dilutions were cultured on BHI agar for 24 hours
and results were expressed as colony forming unit (CFU) per gram of tissue (CFU/spleen)
the protective efficacy of the RR-LPS was also evaluated upon a single immunization
Mice (n=13 per group) were immunized intraperitoneally with pure conjugated LPS (10 μg dissolved in PBS 100 μL) isolated from the RR or RW strains or with vehicle (PBS 100 μL; control group)
each group was infected with the RW strain (109 CFU/100 μL) via the intraperitoneal route and the bacterial burden in the spleens was determined 3 days post-infection
To investigate the role of anti-RR-LPS antibodies in imparting immune protection against S. Rissen infection, the bactericidal assay was performed. Mice were immunized as described above and four days after the last immunization, blood samples were collected, and serum separated by centrifugation. Polyclonal antibodies were purified by affinity chromatography, using protein A/G agarose beads as previously described (55, 56)
antibody solution plus complement (BioMerieux
complement or LB broth (for control group) were mixed with 5 μL of viable RW (final bacterial concentration 1 x 106 CFU/mL) in a 96-well plate and incubated at 37°C for 3 hours
the absorbance at 600 nm was measured using a microplate reader
To evaluate whether the RR-LPS immunization could confer cross-protection
serum samples from mice immunized with the RR-LPS were tested for antibody reactivity against three different serovars of Salmonella (S
Mice were immunized as described above and four days following the last immunization
and the serum was separated by centrifugation (3,000 g
Serum samples were used to measure IgG levels by the LPS-specific ELISA assay and animals giving the highest level of antibodies were selected for serum harvest
colonies of the selected Salmonellae were mixed with 100 μL of serum (undiluted or diluted 1:50 or 1:100 with sterile PBS) or with sterile PBS only (negative control)
The presence of cross-reaction was determined by observing the development of visible clumping of bacterial cells within 3 minutes
To explore the target determinant of the anti-RR-LPS antibodies to S
We tested the antibody reactivity against both LPS and O-antigen from the RR and RW strains using serum samples from mice immunized with the RR-LPS
a 96-well plate was coated with O-antigen (5 µg/mL) or LPS (5 µg/mL) in 100 µL/well coating buffer (Na2CO3 0.64 g and NaHCO3 3.7 g) for 16 h at 4°C
Sera were diluted 1:100 in 100 µL/well of wash-buffer containing 2% bovine serum albumin (BSA) and incubated at 37°C for 1 h
100 µL of the HRP-conjugated goat anti-mouse IgG diluted 1:2,000 (Invitrogen) was added to each well and incubated at 37°C for 30 min
Statistical analysis was conducted using GraphPad Prism 9.0 software (San Diego
followed by either Turkey or Bonferroni post-hoc correction
was utilized to compare two or more experimental groups
For simultaneous comparison of multiple groups with two or more factors
we used two-way ANOVA followed by Bonferroni post-hoc test
The Log-rank test was employed to compare Kaplan–Meier survival curves
A minimum of n = 6 mice per group was included
and no formal randomization procedure was implemented
The reported values represent the means ± SD of two or three biological replicates
A p-value of < 0.05 was considered statistically significant
The RR strain expresses the prophage SieB gene
Analysis of mRNA expression levels displayed increased levels of SieB gene in the RR strain - following AGS cell line infection - compared to RW strain
Results are reported as graph bars and represent mean ± SD of three biological replicates from two independent experiments
Two-way ANOVA followed by Turkey post-hoc correction was used to compare the SieB gene expression between RR and/or RW groups
In conclusion, these results suggest that RR expresses the SieB gene, which confers immunity against secondary phage attack and contributes to the phage-resistance phenotype, likely through modifications of cell membrane elements, such as LPS (28). In addition, these results, along with previous reported results (26)
prompted us to investigate whether the prophage-related virulence genes overexpressed by RR confer advantages to the host response against Salmonella
To investigate whether phage-resistance alters the LPS structure and to assess the effects of these modifications on bacterial virulence and host immune responses
the chemical structure of the Lipid A and O-antigen portions was examined
differences in the Lipid A portion were detected
the primary signal at m/z 1795.875 (calculated [M-H]- = 1796.229 Da) was assigned to the di-phosphorylated hexa-acylated glycoforms HexN2P2[C14:0(3-OH)]4(C14:0)(C12:0)
The spectrum also showed the presence of a signal at m/z 2034.034 corresponding to the di-phosphorylated hepta-acylated species (calculated [M-H]- =2034.462 Da)
which differs from the hexa-acylated species for the additional presence of a C16:0 and
signals at m/z 1585.750 and 1359.630 corresponding to the di-phosphorylated penta- and tetra-acylated glycoforms
each cluster exhibited heterogeneity as proven by the occurrence of signals differing in 80 u
which indicates Lipid A species differing in the length of their acyl chains
Reflectron negative MALDI-TOF MS spectra of S
our findings suggest that RR-LPS is a weak stimulator of the host innate immune response and elicits a mitigated inflammatory response
Orthogonal Projection to Latent Structure Discriminant Analysis (OPLS-DA) of bacteriophage-sensitive or resistant S
before or after phage excision (RW; RR; RSФ1-; RWФ1-
(A) Scores plot showing a distinct separation of RR group (blue squares) from RW
respectively) and of RWФ1- and RSФ1- groups (red and purple squares
respectively) from the RW group (green squares)
(B) Loading plot indicating NMR variables (chemical shift) of metabolites responsible for between-classes separation
(A) Scores plot showing a distinct separation of RSФ1- group (purple squares) from RWФ1- group (red squares)
A total of 28 metabolites were identified as responsible for the above reported classes separation (Supplementary Table 2)
significant differences in their concentration were detected
N-acetyl-alanine and γ-aminobutyric acid)
and 5 organic acid and derivatives (pyruvate hydrate
succinate and formate) discriminated the RW group from the RR (p < 0.05)
RSФ1- and RWФ1- groups did not display significant differences (p > 0.05) in the concentration of succinate
This result suggests that the different concentration observed in the growth medium from RW and RR is ascribable to metabolic changes induced by the presence of the phage Ф1 and specifically to endogenous phage genome elements responsible for phage-resistance
phage infection altered the expression levels of 3 amino acids and derivatives (betaine
1 sugar (myo-inositol) and other metabolites (nicotinate and imidazole)
These metabolites were present in different concentrations (p < 0.05) in the growth medium from RWФ1- compared to RW
The same result was found in RSФ1- compared to RR
were detected between RW and RR groups or RSФ1- and RWФ1-
thus addressing the mentioned differences to phage metabolism
RSФ1- and RWФ1- groups were found to show significant differences (p < 0.05) in the concentration of the amino acid tyrosine
due to the different behavior of Ф1 when excised from the phage-resistant or sensitive strain
To evaluate the effects of lysogeny on the virulence profile of S. Rissen, the lethal dose 50 (LD50) of both RR and RW strains was determined in a mouse model of infection. Female BALB/c mice aged 10 weeks were infected intraperitoneally with a dose-range of viable RR or RW bacteria (103, 105, 107, 109 CFU/mouse) and survival was monitored for 21 days (Figure 5)
Determination of 50% Lethal Dose (LD50) of RR and RW in BALB/c mice
Survival curves of mice infected with different concentrations of RW strain (A) or RR strain (B)
Uninfected control group included mice injected with PBS vehicle (n = 6/group)
** p < 0.01 (Long-rank Mentel-Cox test)
Data are representative of two independent experiments
LD50 was calculated according to the Reed and Muench method
LD50 = Log10 end-point bacterial dose = Log10 (bacterial dose showing mortality next below 50%) + {[(50% - mortality at bacterial dose next below 50%)/(mortality at bacterial dose next above 50% - mortality at bacterial dose next below 50%)] x Log10 (differences between bacterial doses used in the assay)]}
suggesting that mice are hyporesponsive to RR-LPS stimulation and hence
unable to mount an immediate defensive response
This property may reflect the unique organization of the RR-LPS and its capacity to mitigate the host immune system
(A) Experimental design for the intraperitoneal (i.p.) injection of RR or RW-LPS
female BALB/c mice (n = 6 per group) were injected intraperitoneally with 20 mg/Kg of RR or RW-derived LPS (RR-LPS and RW-LPS
respectively) dissolved in PBS solution and then body weight and temperature were evaluated
Mice (n = 6) in the control group (Control) were injected intraperitoneally with the same volume of PBS solution
Graph represents mean ± SD of values from individual mice (dots)
(C) Bar graph represents changes (%) of body weight 24 hours after LPS injection
Data are representative of a single experiment
Two-way ANOVA followed by Turkey post-hoc correction was used to compare body weight among three groups (Control
One-way ANOVA followed by Turkey post-hoc correction was used to compare body weight changes among three groups
**p < 0.01; ***p < 0.001; **** p < 0.0001
(E) Bar graph represents change of temperature 24 hours after LPS injection
Two-way ANOVA followed by Turkey post-hoc correction was used to compare body temperature between RR-LPS and RW-LPS groups at different times following LPS injection
One-way ANOVA followed by Turkey post-hoc correction was used to compare the mean temperature among three groups
*p < 0.05; **p < 0.01; ****p < 0.0001
Cytokine levels in serum of BALB/c mice stimulated with RR or RW-LPS
Mice (n = 6 per group) were injected intraperitoneally with 20 mg/Kg of RR or RW-LPS dissolved in PBS solution
Mice in the control group (Control) were injected intraperiteonally with the same volume of PBS solution
Serum was collected every 2 hours for 8 hours and 24 hours following injection
The cytokines: (A) TNF-alpha; (B) G-CSF; (C) IL-6; (D) IFN-gamma; (E) IL-10; (F) IFN-beta and (G) RANTES/CCL5 were analyzed by ELISA
Two-way ANOVA followed by Turkey post-hoc correction was used to compare cytokine levels among the three groups (control
these results suggest a different capacity of RR and RW-LPS to stimulate the host immune response and a reduced toxicity of the RR-LPS
As a powerful antigen, LPS plays a pivotal role in immunological processes, stimulating antibody production (68). However, due to the Lipid A reactogenicity, LPS – in its native form - is not suitable as vaccine (69). Instead, the low toxicity of the RR-LPS (Figure 7) – resulting from the deacylation of Lipid A (Figure 2) – could make it safe enough to develop antimicrobial vaccines
To investigate the protective role of the RR-LPS against S. Rissen infection, the immunization assay was performed. Therefore, we first explored the concentration of the whole LPS structure necessary for mice immunization, by evaluating the hemolytic effect (Supplementary Figure S6) of a wide range of doses (spanning from 1 to 500 μg)
Results demonstrated that the minimum concentration of RR-LPS showing hemolytic effect < 8% was 10 μg
this concentration was selected to assess RR-LPS as a potential vaccine candidate
IgG and IgA antibody response elicited after immunization with RR-LPS or RW-LPS
Results are represented as mean titers (μg/mL) in serum or feces ± SD from female BALB/c mice (n = 6 per group) immunized intraperitoneally three times with: 1) RR-LPS (10 μg/100 μL PBS
teal green); 2) RW-LPS (10 μg/100 μL PBS
amaranth red) or 3) vehicle (100 μL PBS
Two-way ANOVA followed by Turkey post-hoc correction was used to compare total antibody levels among three groups
* p <0.05; **p <0.01; ****p <0.0001
IgG and IgA end-point anti-RR-LPS or RW-LPS antibody titers
Results represent the antibody response elicited on day 7 after last immunization and are represented as mean titers (μg/mL) in serum or feces ± SD
Two-way ANOVA followed by Turkey post-hoc correction was used to compare total antibody levels
These results clearly suggest RR-LPS as a more effective and safer immunostimulant than the parent RW-LPS
as it retains immunostimulatory properties while lacking most of its toxicity
RR-LPS reduces bacterial burden in mice infected with S
Conversely, mice that received unconjugated RR-LPS exhibited only a modest reduction in bacterial burden. Although bacterial burden was still higher than in those receiving PBS or a single dose of RW-LPS, it was not lethal (Table 1)
Collectively, these findings suggest that LPS-specific antibodies significantly contribute to immune protection against S. Rissen infection, as confirmed by serum bactericidal activity (Figure 9) and highlight RR-LPS as a promising adjuvant for the development of vaccines against Salmonella infections
Antibodies from mice immunized with RR-LPS display bactericidal activity against WT S
1 x 106 CFU/mL) was incubated at 37°C for 3 hours alone
with purified antibodies derived from mice immunized with RR- or RW-LPS
with complement or with both purified antibodies and complement
Data are represented as Log10 of CFU/mL (OD600 = 1 = 5 x 108 CFU/mL) and represent means ± SD of three independent experiments
One-way ANOVA followed by Turkey post-hoc correction was used to compare Log10 CFU/mL among different experimental conditions
Salmonella species share a high degree of homology in genes encoding cell-surface molecules, including LPS, a major target of antibodies (20)
immunization with LPS from one Salmonella serovar could confer immunity against related serovars
serum samples (undiluted or diluted 1:50 and 1:100) exhibited variable agglutination with different selected Salmonella strains (S
undiluted serum showed strong agglutination with S
serum also agglutinated the above Salmonella serovars
although the reaction required more time than the undiluted serum
a late agglutination activity of undiluted serum was observed against S
The strong interaction of anti-RR-LPS antibodies with S
suggests the O-antigenic determinants O:6 and 7 as their major target
These results indicate that anti-RR-LPS antibodies may confer cross-protection against related Salmonella serovars by targeting shared O-antigens
The O-antigen portion of LPS is widely recognized as the key target for immune defense against bacterial infections
These results demonstrate that O-antigen is the primary RR-LPS epitope responsible for modulating the antibody-mediated host protection, supporting our previous findings (Supplementary Table 4)
poorly investigated portions of the LPS molecule may also contribute to the host defense and antibody reactivity
In this study, we investigated the protective effect of an LPS-based vaccine against S. Rissen in BALB/c mice. LPS is a key immunogenic component of Gram-negative bacteria. It stimulates the host humoral immune response and provides protection against pathogens (72, 73)
LPS also plays an essential role in bacterial virulence through its endotoxic component (Lipid A)
which raises concerns about its safety as “subunit” vaccine in its native form
limiting their survival and complicating large-scale vaccine production
we propose - for the first time - phage resistance as a promising biological tool for producing under-acylated variants of LPS
overcoming the limitations mentioned above
as a naturally occurring selection mechanism
bypasses the need for microbial genetic manipulation
thus avoiding challenging related to the stability of mutations and the maintenance of the desired phenotypic traits
phage-resistance promotes bacterial survival under stress conditions
offering a cost-effective and sustainable alternative to conventional genetic
LpxR encodes a deacylase responsible for removing acyl chains from Lipid A
we hypothesized the capability of RR of producing deacylated Lipid A species
In the present study, we validated the above hypothesis. Mass spectrometry analysis revealed that, unlike the RW strain, RR produces a higher abundance of two alternative variants of Lipid A as the penta-acylated and the tetra-acylated form (Figure 2)
Both these two structures are less stimulatory for TLR4 and elicit a mitigated innate immune response
These results demonstrate that the acquisition of the SieB gene
which is associated with the distinctive phage-resistant phenotype of RR
improves bacterial fitness and provides virulence factors (LpxR) which attenuate the innate immune response in the eukaryotic host
These findings suggest that phage Ф1 provides RR with an adaptive advantage by enhancing bacterial fitness
these results suggest that phage-resistance
enhances bacterial fitness and reduces bacterial effectiveness in inducing cell host damage
These results were confirmed in vivo. RR, in fact, curbs the mortality of mice. The highest tested concentration of RR (109 CFU/animal) resulted in 33% mortality in mice, compared to 100% mortality in those exposed to the same concentration of RW (Figure 5)
This reduced mortality may reflect under-acylation of Lipid A and consequently reduced activation of the innate immune response
Under-acylated Lipid A molecules, in fact, compete with native species of Lipid A (hexa-acylated forms) and inhibit the hexa-acylated Lipid A-MD2 complex functions, thus inducing a deficient TLR4 signaling and a reduced secretion of pro-inflammatory cytokines (58)
further in-depth investigation is needed to elucidate the exact mechanism of protection and ascertain whether antibodies are the unique contributors to the RR-LPS induced immune protection
this study demonstrates that under-acylated LPS molecules - derived from the bacteriophage-resistant strain of S
Rissen - induce an attenuated innate immune response
while promoting an effective adaptive immune protection
These properties make RR-LPS a potentially promising candidate for vaccine development
this study also highlights the potential use of phages as an alternative to conventional chemical or genetic methods for producing vaccines
further studies are required to provide further insight into mechanism
length and contribution of additional factors in improving vaccine potency and efficacy
the possibility to extend this approach to other bacterial infections
The datasets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found in the article/Supplementary Material
The studies involving humans were approved by the Committee of Villa Betania Hospital
in accordance with the principles of good clinical practices (Declaration of Helsinki)
The studies were conducted in accordance with the local legislation and institutional requirements
The participants provided their written informed consent to participate in this study
The animal study was approved by the Italian Ministry of Health
The study was conducted in accordance with the local legislation and institutional requirements
The author(s) declare that no financial support was received for the research
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations
Any product that may be evaluated in this article
or claim that may be made by its manufacturer
is not guaranteed or endorsed by the publisher
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fimmu.2024.1450600/full#supplementary-material
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Copyright © 2024 Cuomo, Medaglia, Casillo, Gentile, Fruggiero, Corsaro and Capparelli. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)
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*Correspondence: Rosanna Capparelli, Y2FwcGFyZWxAdW5pbmEuaXQ=
†These authors have contributed equally to this work and share first authorship
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Volume 12 - 2022 | https://doi.org/10.3389/fcimb.2022.936649
This article is part of the Research TopicThe Global Threat of Carbapenem-Resistant Gram-Negative Bacteria Volume IIView all 12 articles
New Delhi metallo-β-lactamase-13 (NDM-13) is an NDM variant that was first identified in 2015 and has not been detected in Salmonella species prior to this study
Here we describe the first identification of a Salmonella Rissen strain SR33 carrying blaNDM-13
The aim of this study was to molecularly characterize SR33’s antimicrobial resistance and virulence features as well as investigate the genetic environment of blaNDM-13
The Salmonella Rissen SR33 strain was isolated from a patient with fever and diarrhea
and it was found to be multidrug-resistant (MDR) and to carry many virulence genes
Phylogenetic analysis showed that SR33 shared a close relationship with most of the Chinese S
blaNDM-13 was located in a transmissible IncI1 plasmid pNDM13-SR33
Sequence analysis of blaNDM-13-positive genomes downloaded from GenBank revealed that a genetic context (ΔISAba125-blaNDM-13-bleMBL-trpF) and a hybrid promoter (consisting of −35 sequences provided by ISAba125 and −10 sequences) were conserved
ISAba125 was truncated by IS1294 in three plasmids carrying blaNDM-13
this is the first report of blaNDM-13 carried by Salmonella
The emergence of blaNDM-13 in a clinical MDR S
Rissen ST469 strain highlights the critical need for monitoring and controlling the dissemination of blaNDM-13
blaNDM-13 carried by a transmissible IncI1 plasmid may result in an increased risk of blaNDM-13 transmission
IS1294 may be involved in the movement of blaNDM-13
Here we aim to characterize a blaNDM-13-positive Salmonella Rissen strain SR33 isolated in China
this is the first report of blaNDM-13 detected in Salmonella
The minimum inhibitory concentrations (MICs) for imipenem, ertapenem, ceftazidime, ceftriaxone, cefepime, amoxicillin/clavulanic acid, piperacillin/tazobactam, trimethoprim/sulfamethoxazole, levofloxacin, ampicillin, tetracycline, ciprofloxacin, chloramphenicol, and azithromycin were determined by broth microdilution following the CLSI guidelines, and MIC results were interpreted according to the CLSI breakpoints (Wayne, 2021)
Transferability of plasmid harboring blaNDM-13 was assessed by the conjugation experiment
Transconjugants were selected on Luria-Bertani agar plates containing rifampin (100 µg/ml) and imipenem (2 µg/ml)
Transconjugants containing the blaNDM-13 gene were verified by PCR sequencing (forward primer sequence: ATGGAATTGCCCAATATTATGCAC and reverse primer sequence: TCAGCGCAGCTTGTCGGC)
The antimicrobial susceptibility of the transconjugant was confirmed by the broth microdilution method
The whole-genome sequence of SR33 has been submitted to the GenBank database with accession numbers CP092911–CP092914
The nucleotide sequence of plasmid pNDM13-SR33 has been deposited under accession number CP092912
Table 1 MIC values of antimicrobials for SR33 and its transconjugant
Whole-genome sequencing (WGS) showed that blaNDM-13 and bleMBL were located on an IncI1 plasmid designated as pNDM13-SR33, which is 88,258 bp in length with an average GC content of 50.37%. The other resistance genes were found on the chromosome. pNDM13-SR33 was successfully self-transferred into C600, and the transconjugant SR33-C600 was resistant to all tested β-lactams (Table 1)
these strains were mainly isolated from food
The drug resistance profiles of these MDR strains were similar
and common drug resistance genes include aadA1
Since the common drug resistance genes in SR33 were located on chromosomes
Rissen ST469 isolates did not carry resistance plasmids
we speculated that the antimicrobial resistance genes were mainly located on the chromosomes of these closely related MDR strains
Figure 1 Phylogenetic distribution of antimicrobial resistance genes of SR33 of this study and other Chinese S
Antimicrobial resistant genes are represented by colored squares
genes with partial deletions are marked with black squares
The source of each isolate is shown with colored triangles
According to SPIFinder, SR33 contained SPI-1 to SPI-5, SPI-8, and SPI-9. All VFDB-annotated genes are listed in Table 2
Based on the annotation of the VFDB database
The virulence genes are involved in adhesion systems
Table 2 Virulence-associated genes in SR33
NDM-13 has been identified in plasmids of three E. coli stains, including an IncX3 plasmid pNDM13-DC33(accession no. KX094555), an IncFIB plasmid pSECR18-0956 (accession no. MK157018), and an IncI1 plasmid pHNAHS65I-1 (accession no. MN219406). Of note, pNDM13-SR33 shared 99% coverage and 100% identity with an IncI1-blaNDM-13 plasmid pHNAHS65I (accession no. MN219406) of E. coli discovered in 2020 (Figure 2)
Figure 2 Genetic map of pNDM13-SR33 (no
As shown in Figure 3
the blaNDM-13-producing strains shared a conserved genetic structure (ΔISAba125-blaNDM-13-bleMBL-trpF)
The conserved region was found involved in various genetic contexts with different insertion sequences
The genetic context of blaNDM-13 in SR33 was highly similar to pHNAHS65I-1 (no
MN219406) with ΔISAba125 truncated by the insertion of an IS1294 upstream
which was also detected in pSECR18-0956 (no
the blaNDM-13 region was adjacent to an ISCR1 complex class 1 integron (ISCR1-sul1-qacEΔ1-IntI1)
The sequences of L704 and IOMTU558 (accession no
a cluster (IS3000-ΔISAba125-IS5-ΔISAba125) was found upstream of blaNDM-13 in pNDM13-DC33 (no
a hybrid promoter (consisting of −35 sequences within the inverted repeat left of ISAba125 and −10 sequences) located upstream of blaNDM-13 was conservative in blaNDM-13-producing strains
Figure 3 blaNDM-13 flanking sequence of pNDM13-SR33 (no
and genes encoding hypothetical proteins are shown in red
Δ; indicates a truncated gene or mobile element
The percentages signify the genetic identity between these sequences
SR33 was found to be MDR and to harbor nine resistance genes
These resistance genes were consistent with the phenotypes except for cmlA1
SR33 remained sensitive to chloramphenicol
which might be due to the fact that the cmlA1 gene had a sequence deletion of 96 bp
Since SR33 was resistant to all β-lactams and susceptible to quinolones
it explains well why cefixime was ineffective against this infection and levofloxacin was effective
Based on phylogenetic analysis, SR33 was closely related to the majority of the Chinese S. Rissen ST469 strains downloaded from EnteroBase. Since the available 37 Chinese S. Rissen ST469 isolates were mostly isolated from food, poultry, and humans, it is in agreement with the idea that S. Rissen infection occurs in humans as a zoonosis through food chain transmission (Xu et al., 2020)
it is possible that this patient had a foodborne infection
Another important finding is that most Chinese S
Rissen ST469 strains were MDR and shared similar drug resistance profiles
Since the antimicrobial resistance genes were mainly located on chromosomes
we should pay close attention to the vertical transmission of MDR S
These observations emphasize the necessity of the surveillance of S
MDR strain SR33 possessed important pathogenicity islands and many virulence-associated genes
blaNDM-13 in SR33 carried by an IncI1 transmissible plasmid may result in an increased risk of blaNDM-13 transmission
ΔISAba125 truncated by IS1294 was found in three blaNDM-13-harboring plasmids including pNDM13-SR33
We thus suspected that IS1294 may be involved in the mobilization and dissemination of blaNDM-13
this study first reports an NDM-13-producing Salmonella isolate
The emergence of blaNDM-13 in a clinical MDR Salmonella Rissen ST469 strain poses a significant threat to public health
Rissen ST469 strains isolated from China were MDR
which highlights the importance of the surveillance for S
The blaNDM-13 carried by a transmissible IncI1 plasmid may cause an increased risk of blaNDM-13 transmission
IS1294 may be involved in the mobilization and dissemination of blaNDM-13
The datasets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found below: https://www.ncbi.nlm.nih.gov/genbank/, CP092911-CP092914
The studies involving human participant were reviewed and approved by the Ethics Committee of the First Affiliated Hospital of Xiamen University
The participant provided his written informed consent to participate in this study
HX and XL contributed to the conception and design of the study
YH and SZ performed laboratory experiments
All authors have read and approved the manuscript
This study was funded by the Youth Foundation of the National Natural Science Foundation of China (81902104)
Basic and Applied Basic Research Foundation of Guangdong Province (2021A1515220153)
Basic and Applied Basic Research Foundation of Guangdong Province Natural Science Foundation (2022A1515012481)
and Joint Research Projects of Health and Education Commission of Fujian Province (2019-WJ-42)
Kai Zhou (Shenzhen Institute of Respiratory Diseases
The First Affiliated Hospital (Shenzhen People’s Hospital)
Southern University of Science and Technology
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fcimb.2022.936649/full#supplementary-material
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Received: 05 May 2022; Accepted: 11 July 2022;Published: 08 August 2022
Copyright © 2022 Huang, Ma, Zeng, Fu, Xu and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)
*Correspondence: Heping Xu, eG1zdW54aHBAMTYzLmNvbQ==; Xiaoyan Li, eGlhb3lhbmxpQGd6aG11LmVkdS5jbg==
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations
Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher
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Metrics details
Salmonella species commonly causes infection in humans and on occasion leads to serious complications
we present the first case reported of a patient with a mycotic aneurysm likely secondary to Salmonella Rissen infection
The patient presented with 4 weeks of lower back pain
chills and a single episode of diarrhoea 2 months prior during a 14-day trip to Hong Kong and Taiwan
Magnetic resonance imaging revealed an aneurysmal left internal iliac artery with adjacent left iliacus rim-enhancing collection
A stool culture was positive for Salmonella Rissen ST 469 EBG 66 on whole genome sequencing
The patient underwent an emergency bifurcated graft of his internal iliac aneurysm and was successfully treated with appropriate antibiotics
This case highlights the importance of considering the diagnosis of a mycotic aneurysm in an unusual presentation of back pain with features of infection
The case presented here is the first case reported in literature of a patient with a mycotic aneurysm secondary to Salmonella enterica subsp. enterica serovar Rissen infection, successfully treated with surgery and antibiotics.
Blood tests revealed the following: haemoglobin 118 g/L, mean cell volume 73.3 fL, erythrocyte sedimentation rate 100 mm, C-reactive protein 87 mg/L, ferritin 1000 μg/L and a white cell count of 8.4 × 109/L (normal differential), lactate 2.0 mmol/L, urea 5.9 mmol/L, creatinine 78.2 μmol/L, normal electrolytes and liver function tests.
The patient’s contrast CT scan (pelvis) showing a left internal iliac artery mycotic aneurysm (*)
A few days later the patient underwent a bifurcated graft of his internal iliac aneurysm
receiving 1000 mg flucloxacillin and 120 mg gentamicin intravenously at induction for vascular surgery prophylaxis (rather than specific Salmonella treatment)
No collections were noted intraoperatively
He was initially treated with intravenous amoxicillin/clavulanate (1000 mg/200 mg) three times daily 11 days after admission with some clinical improvement
Oral ciprofloxacin 500 mg twice daily was added 19 days after his admission
he was discharged on oral ciprofloxacin 500 mg twice daily and amoxicillin/clavulanate (500 mg/125 mg) three times daily as treatment for a presumed S
Amoxicillin/clavulanate was continued to cover the possibility of poly-microbial infection
as the patient showed initial clinical response to this agent
At his 6 months follow-up review in clinic the patient was well and was taking his antibiotic treatment without side effects
A CT scan at 11 months showed ongoing inflammatory changes at the site of the graft
and a decision was made to rationalise his antibiotics to life-long azithromycin suppressive treatment
He has since submitted three culture-negative stool samples and has been allowed to return to work as a chef
The unusual nature of this case lies in the causative organism
there have been no cases of a mycotic aneurysm in literature where S
The key take-away messages of this case are
the consideration of mycotic aneurysm in patients with cardiovascular risk factors presenting with back pain accompanied by chills or fever
a diagnosis of a mycotic aneurysm should not be excluded based on negative blood cultures
mycotic aneurysms secondary to Salmonella infection can be successfully treated with open surgery and antibiotics
which may have to be life-long due to risk of a potentially fatal graft infection
Data sharing is not applicable to this article
as it includes personal medical information only accessible to healthcare professionals relevant to the care of this particular patient
No datasets were generated or analysed during this study
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Carmichael contributed equally to this work
JN analysed and interpreted the data and was a major contributor in writing the manuscript
KS was a major contributor in reviewing the manuscript
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AC was a major contributor in the conception and design of the work and in reviewing the manuscript
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Mars has some of the most impressive volcanoes in the Solar System. ESA’s Mars Express has now imaged the pitted
fissured flank of the planet’s second-tallest: Ascraeus Mons
This image comprises observations from Mars Express’ High Resolution Stereo Camera (HRSC)
Ascraeus Mons is the northernmost and tallest of three prominent volcanoes found in the Tharsis region of Mars
a volcanic plateau in Mars’ western hemisphere
It measures a towering 18 km in height but its slopes are gentle
This slow climb is reflected in the volcano’s huge base diameter of 480 km
giving it a footprint roughly the size of Romania on Earth
Ascraeus Mons is surpassed in height only by Olympus Mons
the tallest volcano not only on Mars but in the entire Solar System
The image shows the lower southern flank of Ascraeus Mons
There is a dramatic difference in elevation from one side to the other
with the left (southern) side of the frame sitting about 10 km lower than the right (northern) side
The volcano’s peak is found to the right (north) of the frame
as seen most clearly in the wider context map of the region
Many similarly dramatic features – collectively named Ascraeus Chasmata
encompassing an enormous patch of collapsed terrain over 70 km across – are visible across the frame: lava flows and tubes
and large fissures spanning tens of km in length.
these features knit together to form a scene resembling trails of ink dispersing artfully in water
or a plant’s beautifully complex root system as it digs down into soil
To the right side of the frame lie numerous wrinkled lava flows. This crinkled ground then encounters chains of ‘pit craters’: features where strings of circular or near-circular depressions have combined and coalesced to form troughs
with a notable example being the dramatic Cenotes found on the Yucatán Peninsula
The pit crater troughs and chains shown here have also grouped together to form an especially large and eye-catching collapse area
These chains and troughs likely form where hidden voids lie below the surface
causing ground to become unstable and collapse – a bit like a sinkhole
The subsurface voids are thought to be created as the surface layer of a lava flow rapidly cools and hardens; the lava flow beneath then ceases and ebbs away over time
leaving tube-shaped pockets of space lurking several metres below ground.
The ground to the left of the pit crater chains is marked by so-called ‘sinuous rilles’: smaller
snaking channels without rims that are often found at the flanks of volcanoes
but their creation may involve flows of lava
ash or water – or a combination of the three
The leftmost part of the image is dominated by large fissures of up to 40 km long
Branching out from these fissures are channels that weave and braid together (‘braided channels’)
isolating chunks of martian terrain to form ‘islands’ and terraces
These are likely to have formed by water – perhaps as snow and ice built up on the flanks of Ascraeus Mons before later melting away
Mars Express has been orbiting the Red Planet since 2003
identifying the composition and circulation of its tenuous atmosphere
and exploring how various phenomena interact in the martian environment
of which Ascraeus Mons is a fascinating example
The mission’s High Resolution Stereo Camera (HRSC) was developed and is operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR)
and Dubendorf Air Base to detect defects in runways with AI before major problems occur
but it’s crucial to prevent bigger problems and enhance maintenance routines
our IBM Research team based in Zurich has developed an AI model that uses computer vision to detect tiny cracks in high-resolution images collected by drones
the military airport on the outskirts of Zurich to inspect the airport’s runway surface
The project will test out several different AI models and how they perform
a drone equipped with a camera will scan the runway
Our AI model will automatically apply what’s known as instance segmentation – a way to detect individual object instances and find their boundaries – to identify cracks on more than 10,000 images
This directs a civil engineering expert to relevant regions to judge the state of the runway
With the help of GPS and image stitching technology developed by our team
we can then create representations of the runway to help people quickly find and describe the location of the defects in the field
Information on crack lengths and widths is automatically populated and stored so that it can be searched for later
This isn’t the first inspection project we’ve worked on
our team has been working with Sund and Baelt (S&B)
inspecting Europe’s longest suspension bridge
It’s the third-longest suspension bridge in the world
linking the eastern and western parts of Denmark
our AI has inspected more than 20 of the bridge’s pillars
One of the big challenges we’ve addressed recently is being able to precisely locate cracks less than a millimeter wide on a structure that’s hundreds of meters long
while also increasing the detection accuracy on the high-resolution images we capture
and visualize the large amounts of data we collect with our imagery
our team also tested the inspection technology at Frankfurt’s Fraport airport
The project’s goal was to inspect runways to detect anomalies and identify foreign object debris — obstacles on the runway
We used our visualization and image stitching capabilities on the data
which also helped us to develop the backend technology we’re using in Dubendorf
While the current project in Switzerland also addresses runway inspection
but we’ve gone a step further with the tech
We expect the data to look different than everything we captured with the bridge project
To ensure we achieve the best possible results
we needed annotated and task-specific data to help us build new models – this could be labor intensive and time consuming
For our case, it means that the foundation models learn a general representation of concrete surfaces and runways. The AI can then search for cracks after the foundation model has been fine-tuned to the specific setting of detection cracks on that particular bridge or runway.
Volume 12 - 2021 | https://doi.org/10.3389/fmicb.2021.702909
This article is part of the Research TopicFood Safety and Public HealthView all 33 articles
Salmonellosis represents a growing threat to global public health
Salmonella enterica remains the leading cause of bacterial foodborne diseases in China
Rissen) has been recognized as one of the emerging serovars among humans in different countries worldwide
To address essential epidemiological information for S
Rissen isolates recovered from samples across the food chain were collected from 16 provinces or province-level cities between 1995 and 2019
Risk factors due to the consumption of animal-derived food products were also analyzed
especially in the Eastern and Southern parts of China
and there is an increasing frequency in recent years as evidenced by the greater number of isolates recovered in 2016
Rissen isolates recovered in this study were from human samples (63.4%; 749/1182)
58.4% (438/749) were from asymptomatic carriers
Rissen isolates from humans from Guangxi (59.5%; 446/749) and Shanghai (29.5%; 221/749)
Among 302 human diarrheal isolates (40.3%; 302/749)
Rissen in children with diarrhea (age below 10 years old)
This is of clinical significance as diarrhea is one of the crucial causes of child mortality globally and our findings here highlighted the importance of Salmonella infections in Chinese children
Rissen isolates were also found to be associated with pork and poultry products in China
This study projected the most updated national-wide study of S
Rissen isolates obtained from different sources in China over the past two decades
Continued surveillance is warranted to further monitor this emerging serovar in China and elsewhere over the world
A bilateral changing trend in association between previously under-reported Salmonella serovars such as Salmonella Rissen and Salmonella Derby causing foodborne salmonellosis and increasing pork and poultry production has been observed (Padungtod and Kaneene, 2006; Jiang et al., 2021)
Rissen) is a frequently reported serovar around different countries with a significant association with intensive pig industry
the knowledge on Salmonella Rissen epidemiological prevalence and disease burden in China is largely unknown
our study aimed to establish an epidemiological relationship of 1,182 S
and environment over a period ranging from 1995 to June 2019 in China
aiming to understand the clinical epidemiology of S
Given the importance of NTS infection in worldwide foodborne illnesses and childhood diarrhea
knowledge of national-wide epidemiology for emerging NTS serovars could guide appropriate control measurements and policy planning
Updated information about the epidemiology and prevalence of different Salmonella serovars in specific areas may facilitate precision public health interventions for mitigation of emerging pathogens
The pure colonies of bacteria were seeded in Luria-Bertani (LB) broth for serotyping. For further serotyping analysis, the PCR confirmed Salmonella isolates were performed by slide agglutination method to define O and H antigens using commercial antisera (SSI Diagnostica, Denmark), and the results were interpreted according to the White-Kauffmann-Le Minor scheme (Grimont and Weill, 2007)
The chi-square test variances were used to test the significant differences in the prevalence of Salmonella isolates between samples collected from different geographical regions
in addition to the difference between the prevalence of asymptomatic carriers and diseased humans if information is available
P-values less than 0.05 were considered statistically significant
Statistical analysis of the results was performed with GraphPad Prism 7
and also showed no significant difference between the different provinces (P > 0.05) (data not shown)
Increasing trend of the Salmonella serovar Rissen in China between 1995 and June 2019
Rissen in China as compared to other Salmonella serovars
Rissen serovar in humans in addition to the prevalence of clinical patients and asyndromatic carriers in China as compared to other Salmonella serovars
Rissen isolates obtained from four established sources (humans
and environment) in China during 1995–2019
Pie charts reveal that the different sources for samples in each province and the size of charts is according to the actual number of the isolates obtained from each province
green color for environmental samples and violet color human samples
Rissen isolates collected from different geographical parts
Rissen isolates collected from different origins
Rissen isolates collected from different human age groups
Rissen between the asymptomatic carriers and diseased patients
The threshold of significance for the P-values indicated as follows: ******P < 0.0001; *****P < 0.0001; ∗∗∗P < 0.001
Our results also showed that the majority of S. Rissen isolates studied in this study were obtained from humans (63.36%; 749/1182) followed by foods (31.1%; 368/1182), animals (3.29%; 39/1182), environment (2.11%, 25/1182), and also displayed statistically significant difference between the isolates recovered from the food samples and those collected from human and animal samples (P < 0.0001) (Figure 3B)
this is the first study to establish an epidemiological relationship of 1,182 S
and food products over a period of two decades in China
majority of these isolates are located and prevalent in Guangxi
Rissen isolates were obtained from females
134 isolates were recovered from diseased females
46% (342/749) of males were affected with S
51.75% (177/342) of males showed disease syndromes caused by S
We also noticed that there was no statistically significant difference between the isolates obtained from males and females in this study (P > 0.05) (data not shown)
Among isolates obtained from live animals and food products, we found that sample obtained from live pigs (84.61%, 33/39) and pork products (65.56%, 253/386) were the highest prevalent with S. Rissen isolates followed by live chicken (15.39%, 6/39) and chicken meat (22.53%, 87/386), respectively (Supplementary Table 1)
25/1182) isolates were obtained from environmental sources
Two isolates were obtained from soil and the other 23 isolates were obtained from water samples
Rissen isolates from clinics and asymptomatic carriers in different provinces or province-level cities in China
Rissen isolates from different age-group of humans recovered from different provinces or province-level cities in China
This suggests that the most prevalent age-group was the children under the age of 10
The high levels of Salmonella Rissen contamination suggest Hazard Analysis and Critical Control Point (HACCP) system for the pork being sold in retail outlets in many countries should be improved or adjusted
the consumption of contaminated swine products is considered one of the most important sources of human infection resulting in Salmonella outbreaks
Rissen in pork is of concern because it has been responsible for increasing sporadic human cases in China
contamination by Salmonella in animal-derived foods in China is a serious issue
posing increasing the risk for human infections
Rissen in different foodstuffs highlights the need for continuing surveillance of these food products
Our results suggest that animal-derived foods should be paid more attention to mitigate the dissemination of Salmonella
These findings highlight the importance of strict prevention and control measures in the pork and poultry production process to ensure food safety along the food chain in China
This study presented the most comprehensive and updated epidemiological description of emerging S
original data on Salmonella prevalence and associated microbial ecology were collected and the dynamics of S
Rissen infection have been extensively studied
This investigation may have potential benefits for future S
Rissen surveillance and outbreak detection in China
The updated knowledge may lead to a better understanding of the prevalence and disease burden caused by S
This information will provide support for the development of novel approaches to mitigate Salmonella infections along the food production chain and in humans
Salmonella control strategies from farm to table should focus on all stages of the food production chain to reduce contamination levels and consumer risk
more research regarding the characteristics of the dissemination of S
Rissen in China is highly needed and continued surveillance of this serovar is necessary as it can cause human diseases as well as asymptomatic carrier
which may represent as the reservoir for human transmissions
This study provides a framework for understanding Salmonella epidemiology from a national-wide to a global perspective and these findings here may offer valuable information for developing future Salmonella surveillance systems globally
The original contributions presented in the study are included in the article/Supplementary Material
further inquiries can be directed to the corresponding author
The studies involving human participants were reviewed and approved by the Chinese National CDC
The patients/participants provided their written informed consent to participate in this study
ME analyzed the data and finalized the figures
DS and XX did the experiment and collect the data
MY conceived the idea and assisted with data analysis and writing
This study was supported by the National Program on Key Research Project of China (2019YFE0103900 and 2017YFC1600103) as well as European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No
Zhejiang Provincial Natural Science Foundation of China (LR19C180001)
and Zhejiang Provincial Key R&D Program of China (2021C02008 and 2020C02032)
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fmicb.2021.702909/full#supplementary-material
Supplementary Figure 1 | Pie chart of the prevalence of S
Rissen isolates obtained from food of animal-origin samples in China
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Pakistan is experiencing its worst floods this century
At least two-thirds of the country’s districts have been affected
Scientists say several factors have contributed to the extreme event
which has displaced some 33 million people and killed more than 1,200
Prices may be subject to local taxes which are calculated during checkout
doi: https://doi.org/10.1038/d41586-022-02813-6
Correction 02 September 2022: An earlier version of this story incorrectly stated the number of houses that have been destroyed
Correction 16 September 2022: A previous version of this story incorrectly stated that at least one-third of the country was under water
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Rissen are emerging serotypes of Salmonella that require close monitoring for antimicrobial resistance and containment of their spread
The study aimed to identify antimicrobial resistance genes (ARGs) in S.1,4,[5],12:i:- and S
Rissen strains isolated from environmental sewage in Guangzhou City
A phylogenetic tree was constructed using single nucleotide polymorphism data to assess genetic relatedness among strains
offering insights for Salmonella infection outbreak investigations in the future
to control the spread of drug-resistant Salmonella
Novel technologies must be utilized to disinfect sewage and eliminate ARGs
Ensuring food safety and proper sewage disinfection are essential to curb the dissemination of Salmonella
Jun Yuan, yuanjuncom@163.com;
Chaojun Xie, 35451900@qq.com
Resistance of Salmonella to 17 antibiotics (n=41) from Environmental Sewage—Guangzhou City
A phylogenetic tree illustrating the evolutionary relationship of Salmonella strains isolated from Guangzhou’s environmental wastewater using whole-genome SNPs
A draft of a federal government risk study to assess contamination in spices found that about 12% of shipments were tainted with pathogens such as Salmonella or filth that included insect parts or animal hair
The detailed look at the cleanliness of the nation's spice supply unveiled by the Food and Drug Administration (FDA) yesterday was prompted by a large Salmonella Rissen outbreak in the United States in 2008 and 2009 that sickened nearly 100 people in five states and was linked to ground white pepper
a Salmonella Montevideo and Seftenberg outbreak linked to a cracked pepper coating on salami products sickened 272 people in 44 states
The United States imports most of its spices
and usage has increased steadily since 1966
written by the FDA Center for Food Safety and Nutrition
results of federal and industry product sampling
The FDA said the report is designed to assist with policy making decisions and help producers
It said the draft of the report will be posted in the Federal Register
and it invited stakeholders and the public to comment on the findings
The FDA team identified 14 foodborne outbreaks linked to spices from 1973 to 2010
the events sickened 1,946 people and led to 128 hospitalizations and 2 deaths
Investigators noted that infants and children were the hardest-hit groups in five of the outbreaks
Ten of the outbreaks involved Salmonella enterica subtypes
and unspecified—were implicated in nine of the outbreaks
because most of the countries reporting the outbreaks are not spice-producing countries
A review of import testing data found a 6.6% Salmonella prevalence in spice shipments
which is higher than other imported foods subject to the same FDA regulations and testing
More than 80 different Salmonella serotypes were found in the 3-year testing period that the FDA examined
The most common filth adulterants were insect parts
Nearly all the insects found in the spices were those commonly found in stored item
which hints at problems with packing and storage
FDA inspections in 2010 at 59 domestic facilities that pack and repack spices found that 10% had Salmonella in the environment
and problems with pest management was the most frequently cited observation
Spices can become contaminated at several points along the production chain
then sold and combined with harvest from other farms
The spices are often held and dried in the open air
then sent to companies to be processed and packaged
Treatments to reduce contamination aren't uniformly applied to all spices or all lots of a spice at a given time
such as failing to limit animal access to spice sources during harvest or drying or failing to limit insect exposure during storage
we concluded that knowledge and technology are available to significantly reduce the risk of illness from consumption of contaminated spices in the United States."
The FDA Food Safety Modernization Act of 2011 gives health officials new tools to boost the safety of spice shipments
including new recall authority and more frequent foreign and domestic inspections
The authors also credited spice and food trade groups for developing recent guidance to control contamination
Federal Register comments can be submitted starting on Nov 4
Oct 30 FDA draft risk profile on contamination in spices
Oct 30 FDA press release on the report
Federal Register notice
Global Virus Network scientists highlight the need for robust surveillance
and readiness for potential human-to-human viral transmission
only the severe infections continued to cause symptoms.
Almost 90% of the European cases were reported in Romania
The Wall Street Journal reports the Trump administration is investing $500 million in the universal vaccine project
There are currently 59 herds quarantined in 4 Idaho counties
The CDC today addressed what's known about treatments pushed by Kennedy
urging caution about vitamin A use and citing individual decision-making by heath providers for others
Yet uptake of the vaccine was extremely low—less than 4% through November 2024
Today Novavax weighed in on the FDA's latest stipulations
noting that postmarketing commitments aren't unusual and are in place for many approved drugs and biologics
44% of respondents said the new leaders will make them trust their health recommendations less than they used to
and Ohio notes an infection in an unvaccinated adult
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Yemen’s president Abed Mansour Hadi has yielded to the demands of Houthi gunmen who over ran the capital Sana’a
agreeing to a power-sharing role that will dilute his powers and give the rebels a strident voice in state affairs
The deal amounts to a capitulation for the embattled leader, who will no longer have full authority to assign the entire government, or to make executive decisions without the input of the Houthis.
A senior Houthi official welcomed the compromise but warned that deadlines had been breached when previous deals had been struck over the past three months. “This deal specifies a two week grace period to implement the core of what was agreed upon and we will be watching up close to see whether the government is serious or not this time,” a member of the Houthi political council told the Guardian.
Rebels had earlier on Wednesday entered Hadi’s home three times, trying to force concessions that would consolidate their hold on power in Sana’a. Gulf States joined Yemeni officials in denouncing the Houthi moves as a coup and said they would do ‘whatever it takes’ defend Hadi’s leadership.
The Houthis, who represent a minority Shia population in Yemen, seized a missile base on Wednesday. The rebels had effective control over much of the country’s military, which watched on earlier in the week as the rebels battled briefly with presidential guards.
Houthi officials had earlier said they would rather partner with Hadi than oust him. Such a stance aims to make Hadi a client of a new Houthi-led power base, which had been flexing its muscles ever since rebels rode into Sana’a last September demanding a greater say in how the state is run.
“We will not remove the president from power,” said Abdullah Shaban, a senior Houthi leader in Sana’a. “He is the president of Yemen but its our duty to ensure that he is not involved in corruption and involves all political factions in the decision making. He will remain as long as he wishes to.
“I advised the president last month to take the Houthi threat seriously but his advisors led him to the hole he is in now. We will not stop putting pressure until the demands of the Yemeni people are met.”
A senior UAE official in Sana’a confirmed that Gulf states were considering shutting their missions in Sana’a to protest developments.
“Our government is currently studying the possibility of closing the United Arab Emirates embassy in Yemen,” the official said. “We downsized our staff months ago and we are keeping a close eye on the developments. We will close the embassy as soon as we are given orders.”
On the streets of the capital, Ali Allanah, a fruit vendor located near the president’s residence said Hadi had no option but to step down. “Hadi is not the president anymore,” he said. “He can’t take care of himself let alone a country. “We only asked the president for security, thats all, and he couldn’t even grant us that.”
Another local man, who fled Sana’a during clashes on Tuesday and is now scared to return said: “Its not secure for me to be in the house, but it is lawless [in Sana’a] and if militants are told my house is empty they would use it to attack government forces.”
“My family is terrified and I cannot allow them to comeback to Sana’a until a deal is reached between both clashing sides. When is that going to be? I don’t know.”
Authorities in Yemen’s southern port city of Aden closed all land, sea and airports on Wednesday raising fears that instability could spread to other regions of the volatile country.
Oil production in Yemen’s most strategic oil province of Shabwa was halted on Saturday and fuel shortages are leading to long queues outside of petrol stations across the country.
Yemen has been racked by political turmoil for much of the past four years, since an uprising, inspired by revolutions in Tunisia, Egypt and Bahrain, rumbled through the Middle East’s poorest nation.
The revolt eventually led to the ousting of Ali Abdullah Saleh, who had led the country for four decades. Saleh is believed to be close to the Houthi rebels. Yemen is also battling a Sunni insurgency, with al-Qaida in the Arabian Peninsula remaining a potent threat in rural areas. The terror group is also active outside of the country, with the Charlie Hebdo killers boasting of carrying out the massacre in Paris earlier this month in its name.
Volume 8 - 2021 | https://doi.org/10.3389/fvets.2021.705044
Nontyphoidal Salmonella (NTS) is the most reported cause of bacterial foodborne zoonoses in Vietnam
and contaminated pork is one of the main sources of human infection
the prevalence of NTS carrying multiple antimicrobial resistance genes (ARGs) have been increased
The genomic characterization along the pig value chain and the identification of ARGs and plasmids have the potential to improve food safety by understanding the dissemination of ARGs from the farm to the table
collected in 2013 at different stages in Vietnamese slaughterhouses and markets
VITEK 2 Compact System was used to characterize the phenotypical antimicrobial resistance of the isolates
whole-genome sequencing (WGS) was used to detect ARGs and plasmids conferring multidrug resistance
Whole genome single nucleotide polymorphism typing was used to determine the genetic diversity of the strains and the spread of ARGs along the pig value chain
86.9% (20/23) of the samples were resistant to at least one antibiotic
Resistance to ampicillin was most frequently detected (73.9%)
followed by piperacillin and moxifloxacin (both 69.6%)
and 69.6% (16/23) were multidrug-resistant (MDR)
The observed phenotype and genotype of antimicrobial resistance were not always concordant
Plasmid replicons were found in almost all strains [95.6% (22/23)]
and the phylogenetic analysis detected nine clusters (S
ARGs and plasmid content were almost identical within clusters
We found six MDR IncHI1s with identical plasmid sequence type in strains of different genetic clusters at the slaughterhouse and the market
high rates of multidrug resistance were observed in Salmonella strains from Vietnam in 2013
Genomic analysis revealed many resistance genes and plasmids
which have the potential to spread along the pig value chain from the slaughterhouse to the market
This study pointed out that bioinformatics analyses of WGS data are essential to detect
and control the MDR strains along the pig value chain
Further studies are necessary to assess the more recent MDR Salmonella strains spreading in Vietnam
During the last years, whole-genome sequencing (WGS) has been shown to be useful for genetic characterization of Salmonella isolates including serovar prediction (18). To our knowledge, WGS is not yet established in Vietnam for NTS analysis, and most of the studies still rely on conventional microbiological methods (19)
we used WGS and bioinformatics analysis to decipher the genetic traits (ARGs and plasmid replicons) of S
Rissen isolates collected in 2013 in Vietnam at different stages of the pig value chain (pig slaughterhouses and pork markets)
We performed phenotypic characterization and AMR testing
as well as a phylogenetic analysis using a distance matrix based on single-nucleotide polymorphisms (SNPs)
Plasmids carrying ARGs were traced for potential dissemination through the pig value chain
The aim of this study was to show that WGS could potentially help to detect and to control the dissemination of ARGs from the farm to the table in Vietnam
In this study, 23 Salmonella isolates (13 S. Derby and 10 S. Rissen) were analyzed. They were collected from diverse positions in pig slaughterhouses and pork markets in Hung Yen province in Vietnam in 2013 (Table 1)
Reinhard Fries from the Institute of Food Safety and Food Hygiene Working Group Meat Hygiene of Freie Universität Berlin (FU)
They were isolated and serotyped following the DIN EN ISO 6579-1:2017-07 in 2013 and stored on glycerol or cryotubes at −20°C
these strains were transferred from the Institute of Food Safety and Food Hygiene
to the Institute of Bacterial Infections and Zoonoses (IBIZ
Jena) under appropriate shipping conditions
Bioinformatics results of the 23 isolates of Salmonella enterica subsp
Isolates were resuspended in 3 mL of brain heart infusion broth (Mast Diagnostica GmbH
Germany) and incubated between 4 and 18 h at 37°C
They were cultivated on RAMBACH® Agar (Merck KGaA
Germany) for 24 ± 3 h at 37°C
and the colonies had a characteristic red–pink color with a bright edge
The isolates were recultivated on Columbia blood plates for 24 h at 37°C. Antimicrobial susceptibility test (AST) of the strain was assessed by determining the minimum inhibitory concentration (MIC) using the VITEK 2 Compact System (bioMérieux, Marcy-l'Étoile, France). VITEK cards AST-N195 and AST-N248 were employed to determine MIC values (mg/L) according to the European Committee on Antimicrobial Susceptibility Testing (EUCAST) guidelines (20)
Twenty-four different antibiotics were evaluated: ampicillin
VITEK 2 Compact System (bioMérieux
France) also detected the EUCAST epidemiological cutoff values (ECOFFs)
Here the 24 antibiotics are enclosed in seven antimicrobial families: β-lactam antibiotics
Derby isolates were also tested with Micronaut AST-system plate M/E1-055-040 (MERLIN Diagnostika
Germany) following the manufacturer's instructions and according to EUCAST guidelines
Turbidity reading and interpretation were done manually
the 23 Salmonella isolates were grown overnight at 37°C in 3 mL of Luria-Bertani broth (Mast Diagnostica GmbH
DNA extraction was performed using the DNeasy blood and tissue kit (QIAGEN GmbH
Germany) following the manufacturer's instructions for Gram-negative bacteria
DNA sequencing libraries were constructed using the Nextera XT Preparation Kit (Illumina Inc.
CA) following the manufacturer's instructions
Paired-end sequencing was performed on an Illumina MiSeq platform (Illumina Inc.) using a 300-cycle MiSeq reagent kit
One strain (19CS0402) was additionally sequenced using the MinION platform to analyze the complete genome sequence and the plasmid structure
High-molecular-weight DNA was extracted using Genomic-tip 100/G and genomic DNA buffer kit (QIAGEN GmbH)
The sequencing library was prepared using the Oxford Nanopore Technologies 1D Ligation Sequencing Kit (SQK-LSK109) with the Native Barcoding Expansion Kit (EXP-NBD104) as recommended by the manufacturer
Furthermore, WGSBAC uses Snippy v.4.3.6 for core-genome SNP (cgSNP) detection. FastTree v.2.1.10 (30) uses the SNP distance matrix obtained by Snippy v.2.1.10 (30) to build a cgSNP-based phylogenetic tree. For visualization of the phylogenetic trees, we employed the online tool iTOL v.5.1.0 (31)
To compare the IncHI1 plasmids of the same plasmid ST replicon, the whole p19CS0402-IncHI1 (Figure 1) sequence was mapped against the Illumina draft sequences carrying the same replicon. The multiple alignment was performed by the algorithm Mauve (35) within the external software Geneious Prime v.11.1.5 (Biomatters, Ltd., Auckland, New Zealand). Annotation was performed with Prokka v.1.14.5 (23) (Supplementary Table 1)
Complete plasmid sequence of p19CS0402-IncHI1 from the Vietnamese strain 19CS402
Resistance genes of the 23 isolates of Salmonella enterica subsp
trimethoprim–sulfonamide and quinolones
Comparison of antibiotic resistance phenotype and genotype of the 15 Salmonella Derby samples
Samples highlighted in different colors: clusters with more than one isolate
Green color figure: slaughterhouse samples
The average of phylogenetic distance in S. Rissen strains was 32 SNPs (0–64 SNPs; Supplementary Table 3). They were grouped into four different clusters. Two of them contained strains taken in the slaughterhouse and the market (yellow and blue highlight, Figure 3). The distance among the S. Rissen strain clusters was up to six SNPs (Supplementary Table 3)
Green color figures: slaughterhouse samples
Blue annotation: mobile genetic elements [e.g.
transposons (Tn) and insertion sequences (IS)]
Yellow annotations: efflux pumps or antiseptic resistance genes
Isolates organized in clusters with information about the collection place
The six IncHI1 replicons belonging to the same ST were found in the samples collected in the slaughterhouse (splitting place) and in the market (pork and cutting board). They belonged mostly to different clusters, and they were found in both serovars (Table 5)
Although the difference in these plasmids lies in some of the ARGs and their MGEs
further investigations must be done to validate the fosA7.3 functionality in S
these discordances show that the genotypical determination of the AMR could add relevant information to the phenotypic detection
However, possible ARG transmission was not only seen within single clusters. Six isolates that belonged to serovars Rissen and Derby and belonged to four different clusters (based on SNP typing, Table 5, gray cells) carried an MDR IncHI1 plasmid with identical plasmid ST. These isolates were found in the slaughterhouse (splitting place) and at the market (pork and cutting board, Table 5
Observations like this reveal the potential spread and distribution of a plasmid transmitting multidrug resistance in different clusters and serovars along the pig value chain
Limitations to this study include the moderate number of strains obtained from samples from Vietnam
the data presented here highlight the importance of antibiotic resistance among Salmonella strains in Vietnamese pigs and show its potential spread to humans
a comparison of our strains with the same serovar and ST from pigs slaughtered in Vietnam was not possible because of the limited number of public sequences strain with the same characteristic as our strains
our publication will add information to increase the number of sequence data to the public databases
collected in 2013 at various stages in pig slaughterhouses and pork markets in Vietnam
VITEK 2 Compact System determined AMR phenotype
and the phylogenetic relationships between the strains
The 86.9% (20/23) of the samples were resistant to at least one antibiotic
The most frequently detected ARGs conferred resistance against tetracycline
but no ESBL- and AmpC-encoded genes were found in any of the isolates
the relation between the phenotype and the ARGs was discordant in the samples
Some of the ARGs were found on plasmids such as IncHI1
which accounted for 26.1% of the samples and carried between 3 and 10 ARGs
SNP analysis showed the potential of transmission of MDR Salmonella from slaughterhouse to market via the pork chain
could be a potential factor for the spread of multidrug resistance among clusters
To investigate the MDR situation in the Vietnam pig value chain
further studies should be done using WGS to identify ARGs and track MDR strains and plasmids
the location of ARGs in plasmids or the chromosome could help to monitor and control the spread of ARGs
WGS and bioinformatics tools should be introduced as a standard procedure to help the identification of critical points within pork production chains to control the spread of antimicrobial-resistant Salmonella
The datasets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found in the article//Supplementary Material
Ethical review and approval was not required for the animal study because Samples were collected from slaughterhouse and market environmental samples
and HT contributed to conception and design of the study
BG-S performed the laboratory work and wrote the manuscript
All authors contributed to manuscript revision
BG-S and SG-S were supported by in-house projects of the Friedrich-Loeffler-Institut on AMR-One Health
We thank Jörg Linde for support on the bioinformatics servers
Fiona Balzer and Herlinde Irsigler for skillful technical assistance
and Fabian Steinlechner for his time and support
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fvets.2021.705044/full#supplementary-material
Single-nucleotide polymorphism (SNP) analysis
IncHI1 plasmid isolates' identity percentage comparison
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Fries R and Tomaso H (2021) Genomic Characterization of Multidrug-Resistant Salmonella Serovars Derby and Rissen From the Pig Value Chain in Vietnam
Received: 04 May 2021; Accepted: 28 July 2021; Published: 27 August 2021
Copyright © 2021 González-Santamarina, García-Soto, Dang-Xuan, Abdel-Glil, Meemken, Fries and Tomaso. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)
*Correspondence: Belén González-Santamarina, YmVsZW4uZ29uemFsZXpzYW50YW1hcmluYUBmbGkuZGU=
We have passed the half way mark in Melodifestivalen 2024
and tonight we rolled on with heat 4 from Volvo CE Arena in Eskilstuna
Six new acts battled it out for two direct qualification spots into the grand final in Stockholm
Winning the heat was Melfest veteran Danny Saucedo and “Happy That You Found Me”
and he can be happy that he found a heat win
because he has now done that all 5 times he has participated in Melfest
After the second round of voting it was Dotter and “It’s Not Easy To Write A Love Song” that got the second direct ticket for the final
Albin Tingwall and Scarlet progress to the final qualifying round next week
30 acts participate in Melfest 2024 split into 5 heats of six acts each
The number 1 and 2 placed acts from each heat qualify directly to the grand final in Stockholm and the two lowest placed acts are finished in the competition
This make up for the first 10 acts qualifying for the grand final
Number 3 and 4 of each heat will have their fate decided in a Final Qualification held in connection with heat 5
The 10 songs in all will compete for 2 tickets to the grand final decided by the percentage of votes each entry got in their heat plus the amount of votes they get in the Final Qualification
Do you think any of these acts could go on to win the entire thing
she won’t win 🙁 Her next song be like “It’s Not Easy to Win Melodifestivalen”
Not a very exciting year for Melodifestivalen
It’s been more predictable than ever so far
with the known names going through even with the most mediocre songs
It seems like they’re trying to push the Norwegian twins considering that in their inability to think outside of their own schemes SVT always leaves their favorite act for last in the last semi
those two aren’t good singers or performers and there sure are better choices
Danny Sausedo sounded so dated with same ‘Amazing’ 2012 hook for a winner of 4 heat
It would be sad for her to compete in ESC with her worst melfest entry 🙁 but well
Not with that song… Bullet proof was amazing but this one wasn’t very good
I really liked “In i dimman” and hope they will be as good or better this year
I don’t know why everyone goes crazy about Dotter
That’s what makes people interesting
We like things another dislikes and dislikes things others like
I’m someone who loves Dotter’s music/voice and appearance
……………I think…………
I thought she would be eliminated this year
The performance seemed like a desperate attempt at being Loreen…
They were easily the best and most interesting this semi
Dotter is leagues above anything else that we’ve heard and seen
It’s the only entry (apart from a few Swedish ones that are chanceless anyway or have already been eliminated) that feels sincere and not generic but still mainstream
Exciting news: in Israel today the Eurovision team came to the studio to work on the song “October Rain” Apparently a new version of the song with different lyrics will be recorded today
It seems that Israel will eventually participate
So much for “we’ll rather withdraw then change anything”
Avada Kedavra, I speak to destroy Ireland for the ESC24 win!
Heat 5 is the last hope for something solid
Let’s not pretend these are actually good songs
Dotter all the way to Eurovision song contest thank you
Her outfit didn’t remind me that much of Loreen
while Dotter had wool that got stuck in a lawn mover
you didn’t know what to expect like you usually do like Danny’s song
In the finals the tv votes might change totally
there is no clear winner as it was last year
For example people who voted for Maria Sur might as well give their votes to Dotter (as I will) and… Read more »
Lol poeple must be blind to say Dotter outfir and Loreen are similar lol
Her outfit that didn’t remind that much of Loreen
while Dotter had wool that got stuck in a lawn mover ?
People who voted for Maria Sur might as well give their votes to Dotter (as I will) and the Jury will hopefully vote for Dotter
I’d have liked Scarlet over Dotter as the other direkt til fina
I’d have liked to have seen it again in whatever we call the andra chansen round now
Scarlet blew away every single act in Melfest so far
SCARLET was easily the best one in this Heat
They wrote the song together with Swedish songwriters and they work a lot in Sweden
Why did Swedish Victor Crone represent Estonia in Eurovision 2019
Lots of artists have been competing/trying to compete for other countries
not like M&M who are worldfamous ultrapopular big superstars
they are more connected to Sweden than Victor is to Estonia
And he was just the first example I came to think of
I also think it’s a shame if M&M will represent Sweden
My guess is that they want to get more connected to the very successful Swedish music industry
The have conquored Norway now they want the rest of the world and Sweden is the road to get there
Danny Saucedo really stood out from the rest (even Dotter)
And the staging was effective and elevated the song
This song tonight was different from her usual style and not that strong
I felt her performance got her through to the final
I usually like weird or very different songs but i coud not root for them tonight,… Read more »
Agreed about Danny and Dotter but I liked Scarlet
I can’t decide if Danny’s staging is boring or genius
no choreography or anything and the stage look a bit cheap to be honest
Genius because Sweden usually sends highly choreographed staging where every movement is rehearsed in detail
He trusts his experience and showmanship and he looks very relaxed and sponteneous and like he is just having fun
I would love so much that we could sent Scarlet to Eurovision but it gonna probably never happen…
almost all Swedes are so tone deaf that the boring pop songs go to the final as usual every year
The same thing happened to Loreen in 2017 when she lost to a Shawn Mendes wannabe
We already know now that Scarlet (who really deserved the last final place) will be eliminated in Finalkvalet
I still get so angry thinking about the 2017 Andra Chansen and it’s been 7 years (and I was watching from the US)
a song that finished second in their heat has never won Mello
So if she did she would be the first one ever
A song that didnt win it’s semi won in 2004
Go to Wikipedia yourself and check how the winners of Mello placed in their heats those years
Then you’ll see that 2004 and 2019 they placed first in their heats
2013 is the only exception because Robin placed 3rd and went through “the second chance”
But it has never happened that someone who placed second in their heat has won
Not once in the 22 years that there’s been heats
I love her but she can’t even win this heat so it’s impossible for her to win the whole thing
I love Dotter past tracks at Melodifestivalen and It’s Not Easy to Write a Love Song is good and well written
but all I could see in her performance was too much effort
too much planning yet full of clichés… A mix of Cornelia and Loreen on stage
And it was not memorable for something as such
I’ve heard her say a few times in interviews she had so much vision for how she wanted to stage and perform it
but it’s mad how influenced it seemed by Loreen and Cornelia
Loreen doesn’t own lying down on something
and Cornelia doesn’t own that style of camerawork
but I was expecting a lot more of a vision from Dotter
A shame Scarlet didn’t make it to the final
Danny’s song and performance is pretty good
but she’s overdoing her movements and mimics
And if he wins it’s because it’s Danny not because of the song
And then he better think about some other staging and clothes
staging and performance were amazing tonight
Not sure but surely a contender for the crown
Well going by that logic then you can say Loreen won cause she was Loreen
the song really felt uoriginal…and the staging was nothing to cheer about either
but I couldnt help feel that she was going all in for becoming CorneliaJacobs.2 this time around…so despite a good song
Scarlet was said to be the hardest song ever in MF by some… barely… pure pop feeling
I still think this song might grow on me…but it was overall a bit disappointing
struggled with… Read more »
For me Dotter and Scarlet were the standouts
Dotter has a very natural charisma that makes whatever she’s performing feel expensive and with Scarlet I immediately felt the fantasy
Lia should have gone through and Dotter should be out
I think everyone was expecting them to qualify
No winner candidate in sight and it’s already week four
I love Danny but this year’s song and performance was tired and uninspired
Poor thing was sick with obvious voice issues but I don’t like her getting through on sing back… If there aren’t enough good songs we don’t need five heats
It is just a festival of mediocre at this point
Very few artists in melodifestivalen do all the vocals live and alone
Dotter was helped by both a backing singer behind stage (Melanie Wehbe) and prerecorded backing vocals
She lip synced parts of the performance because her voice did not hold as she was sick
If you watch the performance it is obvious she lip synced parts of the song
The “slaying” vocals was performed by Melanie Wehbe singing backing vocals behind stage (no secret
she also helped with Lia Larsson’s vocals) and the prerecorded vocals (all allowed in melodifestivalen)
she was sick and could not help it – but I have not seen anyone lip syncing go to the finals before this and I feel it is undeserved
Dotter going DTF while barely being able to talk
Because her doctor said she was not allowed to speak in order to save her vocal chords
She cancelled all interviews and press meetings
I’m gonna be so gutted if Scarlet don’t make it to the final
Kinda surprised Albin managed to squeak through
(I know he didn’t “squeak through” as such
I just forgot about the song as soon as it was over)
Danny and Dotter were both very underwhelming
would have rather had Scarlet and Albin go through
Everyone’s hoping Marcus & Martinus are bringing a winner
I’m actually wondering whether Medina could bring something epic
Also why did Carina say a few things in English today
Swedes switch to English when they don’t want their kids to understand what they are saying
common thing in Sweden and probably a few other places that parents speak in English to each other to avoid their children overhearing conversations they don’t want them to hear
Much pressure is now on Marcus and Martinus and also Medina
If that’s what people are looking for
My hope is that someone can up-grade at last one step from what we have heard and seen these four weeks
I like Marcus and Martinus and Medina.… Read more »
Particularly in Sweden where Mello is supposed to be more than a national selection but a festival in it’s own right
It’s completely valid to voice an opinion that the songs seem weaker than some other years
Literally what is wrong with me wondering Medina bring something epic
I said it because I like them and that describes their style of music
I’m not saying it because I want/expect Sweden to win two years in… Read more »
In general eurovision fans have pretty high expectations when it comes to Sweden
And the songs that fans don’t like or call overrated get the chance to become hits in Sweden
But last year was also weak and the year before that
I’m just saying it’s just never enough.
Maybe issue is you expecting every song to be “epic
If you constantly expect songs to be epic you will be disappointed
Seems like international fans always expect these shows to be epic
The point is to entertain people through music
Not every heat will be epic and not every year will be epic
If SVT wanted epic songs they could just choose 10 massive songs and let them fight
think that of the 30 songs in Melfest the people selecting the songs think like this: 5 are supposed to have potential for a good results in ESC
The rest are there for other reasons: a place for a new artist to be seen and heard (example: Melina Borglowe)
others for pure entertainment (Like Gunilla Persson) and then a groupd that is there to diversify (Lasse Stefanz
So the 5-ish that is supposed to have ESC-potential (according to the people that selects the songs) are (this year): Liamoo
Carina was speaking Swenglish to parents of young children to give them secret messages
Like if the kids fell asleep watching Mello
you should carry them to their beds and then eat their candy
But many schoolkids in Sweden speak great English
In Sweden parent often use English when talking about things they don’t want little kids to know
her speaking “Swenglish” with a mix of English and Swedish when talking about families
Björn Gustafsson’s humour is funnier than Edward af Sillén’s
The joke was fun for 20 sec and then it was all downhill
Marcus and Martinus better come with an unforgettable song next week cause so far Melodifestivalen has been very uninspiring and middle of the road…
Swedish journalist Tobbe Ek was asked in a podcast yesterday if he has heard any of the songs in the last heat
He didn’t want to say too much but he seemed to think that both Marcus & Martinus and Medina are very good
And that it’s likely the winner will be from the last heat
He has obviously not seen the performances though
How do you expect them to come with unforgettable song when last year they came with most generic song ever
Scarlet gave a good vocal performance twinned with great visuals and dancers akin to Bambie Thug
Danny’s performance didn’t have any dancers
the visuals were amazing and more importantly
It’s like this was composed RIGHT AFTER Amazing
I have a feeling the lyrics are referring to how he has made a comback in English
He really did well with the vocals I thought
Don’t repeat the crime of “Cry”
I don’t know Steps well enough to which of their songs the piano undertune of Danny’s song reminds of
This is my least favourite part of the song
Which I think itself was heavily inspired by ABBA
I agree that the winner reprise was better
The performance producer/creator is doing something wrong when the song is better without the original performance
I’m so happy that Danny’s so happy
He’s so happy that he found it (the fifth heat win)
That was the biggest favourite in all 4 heats to win
Let’s see if it’s Dotter or Scarlet who follows along 🙂
Dotter stans downvoting those of us who don’t have her in our top
Happy to discuss in replies but unless we’re being rude/unjust (which simple rankings obvs aren’t) I’d downvote really necessary?!
Hopefully next week we will see the winner song of this years Melfest (Marcus & Martinus)
Norwegian twin(k)s won’t win in Sweden
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Lithuania — the three Baltic States are primed and ready to launch their campaigns for Eurovision 2024
They’ve each developed a rich history at the contest
Estonia and Lithuania have now been competing for three decades
There have been highs — they share two Eurovision victories between them — and lows — each have failed to qualify for the final at some point
The task of representing the three nations now lies in the hands of Dons
But which of them has your favourite entry
Then head down and vote in our poll and show some love for your Baltic champion of the year
Make sure you’re happy with your selection before submitting a vote — you’ll only be able to do so once
Which of these acts do you think will get the best result at Eurovision 2024
Let us know all your thoughts in the comments below
Jonathan is a Eurovision fan from the United Kingdom and first watched the contest in 2005
After coming across the national selections and junior contest ten years later
he's now fully immersed himself into the Eurovision lifestyle
You can follow Jonathan on Twitter: @JonathanVautrey and Instagram: @jonathanvautrey
I personally find Luktelk pretty repetitive
(N)NETM(K)M is so much more entertaining and catchy of a song
and I like Dons has the best personality of the Baltic participants this year
I have to go with Estonia (again) this year
That video is one of the most interesting that has been made
I do believe that Latvia finally has a qualifier this time around (Justs in 2016 was the last one)
all 3 should find themselves on the stage for the Saturday show
Perhaps not this year but I feel it coming
I do think Lithuania will win Eurovision sometime this decade
but in the future if they keep improving and getting better results
If Lithuania ever does win Eurovision in the future
I plan to write a Hetalia fan fic tracking Lithuania’s Eurovision journey leading up to the victory through the eyes of the personification
But I am not posting it until Lithuania actually wins
I really root for Lithuania to win at some point
They’ve been in the game with solid entries for a long time now
Kaunas could be the host city since almost all foreign artists go there and has the capacity for that level of a show
Estonia is one of my favourites of the year
Lithuania is really the best among these 3
but it’ clearly better than Estonia…
I do think it’s a shame there’s a lack of support for Latvia
Last year they had a brilliant song that got shunned and it seems like this year will be a repeat of that
They’re all in my top 10 this year (Lithuania 2nd
Latvia and Lithuania are my qualifiers on my opinion
It’s surprising to see that people really vote more for Estonia than for Latvia
But they’re the only ones without a win so far
They’re also the biggest of the Baltics population-wise
Interesting that Wiwibloggs always launch this kind of poll about the baltics
Latvia for me and its actually my winner this year
The Baltics have a strong season this year
Difficult to predict how the voting will go but my favorite is ‘(nendest) narkootikumidest ei tea me (küll) midagi’ due to it being in my native language and I enjoy that
‘Luktelk’ is also strong and in its native Lithuanian – a plus
Not a ballad person but Latvia with ‘Hollow’ is seemingly underrated
all songs have translations that can be checked out… Read more »
Estonian flag* Latvian flag* Lithuanian flag*
I think it’s a strong year for the Baltic entries
All three are great songs with different attributes
Lithuania “Luktelk” has the most memorable Chorus and hooks; great choreo and some haunting singing from Silvester when he’s not too busy working the crowd
This should do well enough to qualify for the grand final
Latvia “Hollow” has a gravity about it that reaches me
but it needs much better staging and storytelling to do well
Estonia “That long song title I can’t be bothered to… Read more »
“(nendest) narkootikumidest ei tea me (küll) midagi”
the Baltics usually struggle in a competing year ending in four (Lithuania and Estonia were bottom 2 in 1994
and all three Baltics failed to qualify in 2004 and 2014)
We’re gonna see at least two of them in the final I guarantee it
I’m trying to learn the song by heart (mission impossible)
Lithuania is my favorite but really think all 3 can qualify
It would be cool to see all three qualify to the final for once
although I do acknowledge latvia has an uphill climb
Very unpopular opinion but I think Lithuania could be NQ or be at the bottom 7 in the finals
For some I get the same vibe like Slovenia 2023 and Albania 2022
Estonia waste of the fee for participating
To Many Gay Dudes This Year Its Begining To Feel Forced
Very Good Lyrik But I Dont Like The HairLess Look
singer and performance is from Silvester Belt
As from the studiocut I wasnt much with the track of Latvia
After seeing his live show at the pre-party in Madrid I got very impressed by his vocals
The Estonian entry of 5miinust & Puuluup make me smile,also the songtrack as it must be the longest one in ESC history
The live show in their national Final was a hot mess and didnt convince me.… Read more »
I like Latvia but I fear it won’t qualify while I really don’t like the song from Estonia but think it has a fair chance to qualify
nothing is too competitive here or too tryhard
i also like Lithuania (worthy NF winner in what was a very strong NF honestly
my personal favourite there was Gaude Vejai by Zalvarinis
i liked the game of thrones vibe in that ethno bop)
i see it as this years ”Estonia 2023 – Bridges” good song by a solid live vocalist
I voted for Latvia but all 3 are quite good this year
They are all so different but good in their own genres
Lithuania just tips past Latvia and Estonia
Estonia’s song is the most unique and different of the three but Silvester has my respect for singing in his native language
Dons’s song sounds best in english though
you wouldn’t understand a thing from it in latvian
It’s also easily the best-written song in English this year
How interesting that in (what is considered to be) the SONG contest
good song with meaningful lyrics is somehow so underrated
that Wiwibloggs didn’t interview him during Madrid pre-party
Latvia is the one in danger of NQing again
I think Latvia will be this year’s Bridges
He’ll qualify in the lower positions and then have huge jury support in the final
I think they’re all strong this year and deserve top 12 or better
Broadband TV News
September 14, 2017 12.44 Europe/London By Robert Briel
Esports is reaching the elusive millennials audience
but total viewing figures are now even overtaking traditional sports
Bakker said there are opportunities for traditional players in the broadcast market in the esports world
as the passionate fanbase is very vocal.” He outlined that there is a need for storytelling portraying the players
but started way back in 1080 with Atari hosting the first tournaments in New York City
the global esports market was estimated in 2016 to top $463 million
its audience power is unparalleled and offer enormous opportunities for broadcasters
Prize money has rissen to $100 million a year with members of winning teams pocketing $2 each for a single tournament
Visa and others have now come aboard as sponsors
Broadcasting of live esports events was until recently mainly online
but is now also coming to tradtional broacdst channels
Multichoice and Canada’s Super Channel recently
and Bakker said he hopes to announce an agreement with a European DTH platform in the coming months
Ginx was launched in 2008, but turned into Ginx Esports TV in 2016 with Sky and ITV taking shares in the fledgling broadcaster
Ginx eSports TV showcase majors eSports tournaments from across the globe
The schedule includes coverage of Turner’s Eleague tournament
Filed Under: IBC Special Tagged With: eSports, Ginx, IBC 2017, Michiel Bakker Edited: 14 September 2017 12:48
Arnhem-based Robert covers the Benelux, France, Germany, Austria and Switzerland as well as IPTV, web TV, connected TV and OTT. Email Robert at rbriel@broadbandtvnews.com
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A retired Brighton antiques dealer has been jailed for four years for running a cannabis farm with his partner
The force said that officers found more than more than 1,700 cannabis plants in various stages of growth
Lewes Crown Court was told that they were worth up to £2.1 million
They denied the charge and – after a trial lasting three and a half weeks – the jury cleared Jesse Boyle
pleaded guilty in January at the start of the trial
On Thursday (2 March) Judge Guy Anthony handed a four-year prison sentence to Terry Boyle
who had earlier given his address to Brighton magistrates as Chalky Road
The judge also jailed Hawkins and Cooper for four years each for the drugs offence and gave Cooper a two-year sentence for money laundering
Police raided the farm at 9.15am on Wednesday 26 February 2014 and found the cannabis plants in an outbuilding
officers held two other people during the raid – a 19-year-old woman and a 42-year-old man
At the time of the raid Detective Inspector Gavin Patch said: “This was an intelligence-led operation
After the sentencing hearing the investigating officer
said: “This has been the largest cannabis factory I have dealt with
“And this has been a long and complex investigation involving a number of officers and we have succeeded in taking a massive amount of cannabis off the streets
“In the process three people who worked together to set up this professional set-up are going to serve time in prison
An application is expected to be made for a confiscation order under the Proceeds of Crime Act
A key asset will be the proceeds from the sale of the farmhouse which was built for Boyle on the site of a horticultural nursery in 2005
It was put up for sale for £1.3 million last year
And it is believed to have sold for under £1 million
He is one of the seven children of the late Brighton antiques dealer Billy Boyle
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Roji Cat Beer Bar is a vibrant fusion of Japanese street culture and Gold Coast nightlife
born from the Lee family’s deep love for Japan and their annual snowboarding trips
alongside long-time family friend and renowned brewer Satoshi ‘Toshi’ Tamura (formerly of Black Hops)
have created a lively new venue that brings a slice of Tokyo’s buzzing atmosphere and dizzying blend of energy to Miami
What started as a casual idea over beers evolved into a full-fledged vision – to recreate the vibrancy of Tokyo’s bustling alleyways in a bar setting
alley-like layout feels serendipitously perfect
reminiscent of the hidden streets of Tokyo
where adventure awaits around every corner and behind every door
neon lights and intimate nooks invite you to explore
A standout feature is the electric dart boards
a private karaoke room offers the chance to sing your heart out in near sound-proof privacy
At the heart of Roji Cat is Satoshi’s passion for brewing
The bar boasts a dozen house-made beers on tap
with crowd-pleasers including Toshi’s Japanese rice lager and Black lager accompanying a rotating selection of seasonal specialties in the opening line-up
The signature cocktails put a Japanese spin on the classics
a refreshing blend of apricot-infused iced tea with delicate notes of plum umeshu
where sweet melon and lychee combine to deliver a bold citrus punch
there’s a full bar featuring 24 carefully selected sakes
with a menu that delivers an elevated take on Japanese street food
some of the standouts include yuzu karaage chicken
kimchi burgers and perfectly grilled robata skewers of chicken
If a trip to Japan isn’t on your travel bingo card for 2024, Roji Cat in Miami is the next-best thing. Head to our Stumble Guide for opening times.
InDaily Queensland acknowledges the Traditional Owners of the land on which we work and live, the Turrbal, Yuggera, Yugambeh and Kombumerri people, and recognise their continuing connection to land, waters and culture. We pay our respects to their Elders past, present and emerging.
Three men have been convicted of multiple offences carried out as part of a vigilante attack on men guarding a repossessed farmhouse in Roscommon five years ago
Following a trial that ran for over three months
the jury at Dublin Circuit Criminal Court today returned its verdicts
after deliberating for a total of 13 hours and 58 minutes
A fourth man facing charges in relation to the same incident was acquitted by the jury
which had began its deliberations last Thursday
Co Donegal was found guilty of false imprisonment of and assault causing harm to Ian Gordon
He was also found guilty of aggravated burglary and three counts of arson in relation to three vans which were allegedly set alight
He was acquitted of one count of arson in relation to a car and the robbery of a wristwatch from John Graham
Sweeney was further convicted of criminal damage to a door of a house
violent disorder and to causing unnecessary suffering to an animal by causing or permitting an animal to be struck on the head
Claremorris was found guilty of false imprisonment of and assault causing harm to Ian Gordon
aggravated burglary and criminal damage to a door of a house
He was also convicted by the jury of violent disorder
three counts of arson and of causing unnecessary suffering to an animal by causing or permitting an animal to be struck on the head
He was found not guilty of robbery of a wristwatch from John Graham and
Co Roscommon was found guilty of false imprisonment of and assault causing harm to Ian Gordon
He was also found guilty of aggravated burglary
to causing unnecessary suffering to an animal by causing or permitting an animal to be struck on the head
He was acquitted of robbery of a wristwatch from John Graham and one count of arson in relation to a car which was allegedly set alight
The jury returned unamimous guilty verdicts in respect of the charge of violent disorder faced by O'Toole
Jurors found the three men guilty by a majority of 11 to one on the 14 other charges of which they were each convicted
a security worker with an address at Bailis Downs
was found not guilty of the 17 charges he faced
He was found not guilty of false imprisonment of and assault causing harm to Ian Gordon
aggravated burglary and four counts of arson
He was further acquitted of criminal damage to the door of a house
robbery of a wristwatch from John Graham and
causing unnecessary suffering to an animal by causing or permitting an animal to be struck on the head
The four defendants had pleaded not guilty to all counts
a group of approximately 30 armed men smashed their way into a house at a recently repossessed rural property at Falsk
and a chain saw and they attacked the men who were guarding the property
The State's case was that the four accused and the other men present had gone there to take back the house for the previous owner Anthony McGann and his brother
who had been forcibly removed from the property during a court-ordered eviction five days earlier
The prosecution said that the men who went to Falsk all shared the common goal of getting the security men off the property and making sure they didn't come back and that to achieve this
the group engaged in sustained and brutal violence designed to terrorise the men working there
The case was prosecuted on the legal principle of common design which holds that if two or more people embark on a plan together to commit crimes each person is criminally liable for anything done by the others
One security guard testified that he was struck to the face with a metal object
beaten on the ground and then forced to eat faeces from his own guard dog
The dog had lost control of its bowels after a number of blows to the head from a baseball bat and was later euthanised
Some of the victims described men repeatedly jumping on their body and legs
One man said he was attacked with a meat cleaver
baseball bat and sticks and had his trousers doused with petrol
The men testified that they believed they were going to die and others described running for their life from the mob and jumping into a river to escape
Judge Martina Baxter thanked the jury for the attention and time they had given to the case
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Home Bury St Edmunds News Article
A butcher says he is hoping to bring his trade ‘into the 21st Century’ by going online
Cijay Rissen launched his website for the Meat Market Brandon, Suffolk
at the beginning of November to keep a pace with people’s shopping habits
He says a number of events have persuaded him to make the move as fewer people use the high street
has also taken his business in another direction
He is now rearing his own livestock after taking on a flock four sheep
“They became available after a friend said his family didn’t want them any more,” he said
“We are expect a first heard of lambs in February and then long term I hope to have about 50 ewes in a field a rent
“I have always made sure to use only quality local meat but I saw this an opportunity to raise my own happy flock with the animal’s welfare in mind
I am also hoping to start breeding pigs as well
The Meat Market Brandon was founded in 1965
Mr Rissen has now also invested in a new scales system which gives digitally itemised bills
“It’s always been traditional for butchers to scribble orders over the counter on pieces of paper,” he said
The Meat Market website now allows customers to also place their order online
These are now available for delivery or collection
Mr Rissen says his business has taken several blows since he took over the Meat Market in 2014
including the loss of a bus service and a high street bank
plus the loss the the grocer’s shop have meant I have lost more than 100 customers a week
“Shopping habits have changed and as an industry
we just have to keep up with that,” said Mr Rissen
“When I took over this business there used to be 10 butchers in Brandon and surrounding area; now there are two or three.”
The shop’s website can be found at www.meatmarketbrandon.online
Insbesondere im etwa 100.000 Einwohnerinnen und Einwohner zählenden Darna stieg die Zahl der gemeldeten Todesopfer am Dienstag stark
In der Früh war noch von Hunderten geborgenen Leichen die Rede gewesen
Und die Zahl der Vermissten in den betroffenen Gebieten ist enorm: „Wir bestätigen anhand unserer unabhängigen Informationen
dass die Zahl der vermissten Personen bei etwa 10.000 liegt“
teilten die Internationalen Komitees vom Roten Kreuz und Roten Halbmond (IFRC) mit
sagte der Luftfahrtminister der im Osten herrschenden Regierung
wie sich ein breiter Strom mit voller Wucht durch das Stadtzentrum schlängelte
nachdem zwei Dämme unweit der Stadt mit einem lauten Knall gebrochen waren
Von den Wassermassen wurde alles mitgerissen: Menschen
Sehenswürdigkeiten und Häuser sollen so ins Meer gespült worden sein
Hani Schennib vom Nationalen Rat für Beziehungen zwischen den USA und Libyen gab gegenüber al-Jazeera an
der zur völligen Zerstörung der Dämme in Darna geführt habe
Das führte zu „einer plötzlichen Überflutung der Stadt in einem Ausmaß
dass etwa vier Quadratkilometer des Stadtzentrums vollständig weggespült wurden“
Zwar lassen sich einzelne Extremereignisse nicht direkt auf eine bestimmte Ursache zurückführen
klar ist laut Weltklimarat aber: Durch die Klimakrise werden Extremwetterereignisse wie Überschwemmungen
Das heißt: Niederschläge und Stürme werden stärker
dass 25 Prozent der Stadt verschwunden sind“
Leichen lagen aufgereiht auf der Straße vor einem überfüllten Krankenhaus
und die Bewohnerinnen und Bewohner suchten unter den Leichentüchern
wurde die zuvor von den Not- und Rettungsdiensten angegebene Zahl der Todesopfer in Darna bestätigt
In einem Bezirk der Stadt seien bisher 1.700 Leichen geborgen worden
In dem anderen der zwei Bezirke seien 500 Tote gefunden worden
Auch ein Sprecher der örtlichen Notdienste berichtete von den schwierigen Bemühungen der Rettungskräfte
aber die Durchfahrt ist schwierig und gefährlich
da ein Teil der Straße zerstört ist und ein weiterer Einsturz aufgrund der riesigen Wassermengen erwartet wird.“ Man sei auf die Unterstützung von Hubschraubern angewiesen
Strom und Internetverbindung seien unterbrochen
„Daniel“ war bereits vergangene Woche mit extremem Starkregen über Griechenland
Vor allem im griechischen Thessalien sorgte das Sturmtief für Überschwemmungen
Bis Sonntag meldeten die griechischen Behörden 15 Todesopfer
zwei Menschen wurden nach Angaben des Zivilschutzes noch vermisst
In der Türkei und Bulgarien kamen laut den Behörden zwölf Menschen ums Leben
Von Libyen aus bewegte sich „Daniel“ dann auf Ägypten zu
Die international anerkannte Regierung in der Hauptstadt Tripolis unter Ministerpräsident Abdul Hamid Dbaiba sprach von den schwersten Regenfällen seit mehr als 40 Jahren
Sturm „Daniel“ hatte Libyen am Sonntag erfasst
Laut den Rettungsdiensten wurde vor allem der Nordosten getroffen
al-Mardsch und Schahat wurden unter Wasser gesetzt
In und um Schahat seien rund 20.000 Quadratkilometern überflutet
wie der Bürgermeister der rund 43.000 Einwohnerinnen und Einwohner zählenden Stadt dpa-Angaben zufolge mitteilte
Die Regierung in Tripolis kontrolliert die östlichen Gebiete nicht
Mindestens ein Hilfsflug startete am Dienstag von der westlichen Stadt Misrata aus
wie ein Reuters-Journalist an Bord des Flugzeugs berichtete
Laut Dbaiba brachte das Flugzeug 14 Tonnen an Hilfsgütern
Leichensäcken und 87 medizinische und paramedizinische Fachleute nach Bengasi
man habe umgerechnet 412 Millionen US-Dollar für den Wiederaufbau in Darna und anderen Städten im Osten bereitgestellt
Nach einem verheerenden Sturm und schweren Überschwemmungen im Nordosten Libyens sind in der besonders betroffenen Hafenstadt Darna Tausende Menschen Opfer der Naturkatastrophe geworden
Am Dienstag kamen Flugzeuge mit humanitären Hilfs- und Rettungsteams aus Ägypten
der Türkei und den Vereinigten Arabischen Emiraten in Bengasi an
Auch der ägyptische Generalstabschef traf sich mit dem General Chalifa Haftar
Mit der selbst ernannten Libyschen Nationalarmee (LNA) kontrolliert Haftar den Osten des Landes
Auch die Europäische Union sicherte Unterstützung zu
dass sie sich mit den UNO-Partnern und den libyschen Behörden darüber abstimmen
wie sie die Hilfsmaßnahmen unterstützen können
Angekündigt wurde finanzielle Unterstützung
Frankreichs Präsident Emmanuel Macron sprach dem „libyschen Volk“ seine „Solidarität“ aus und erklärte
sprach den Betroffenen sein „Mitgefühl und Beileid“ aus und erklärte
Washington arbeite mit den Vereinten Nationen und den libyschen Behörden zusammen
Deutschlands Kanzler Olaf Scholz nannte die Nachrichten aus Libyen „bestürzend“
Der britische Außenminister James Cleverly bot den Menschen in Libyen Unterstützung an
die von der katastrophalen Überschwemmung im Osten Libyens betroffen sind“
Großbritannien stehe für Unterstützung parat
„Wir sind in Kontakt mit libyschen Behörden und der UNO
welche Unterstützung wir dem libyschen Volk in dieser tragischen Zeit bieten können.“
Die Bilder aus Libyen zeigen „ein unvorstellbares Ausmaß der Zerstörung durch eine schwere Naturkatastrophe“
so Bundespräsident Alexander Van der Bellen
der via Twitter (X) den Angehörigen der Todesopfer und allen Menschen
die von den verheerenden Überschwemmungen in dieser ohnehin krisengeschüttelten Region betroffen sind
Am Montag wurde eine dreitägige Staatstrauer ausgerufen
Die Katastrophe schien das Bürgerkriegsland zunächst zusammenzuschweißen
In Libyen war nach dem Sturz von Langzeitmachthaber Muammar al-Gaddafi im Jahr 2011 ein Bürgerkrieg ausgebrochen
In dem ölreichen Staat ringen bis heute zahlreiche Milizen um Einfluss
Derzeit kämpfen zwei verfeindete Regierungen
Der Konflikt wird durch ausländische Mächte zusätzlich befeuert
red, ORF.at/Agenturen