First genome of a mcr-9-mediated colistin-resistant Salmonella Typhimurium from Brazilian livestock

Publication date: Available online 9 October 2020Source: Journal of Global Antimicrobial ResistanceAuthor(s): Elma L. Leite, Wydemberg J. Araújo, Tatiana R. Vieira, Karoline S. Zenato, Priscylla C. Vasconcelos, Samuel Cibulski, Patricia E.N. Givisiez, Marisa R.I. Cardoso, Celso J.B. Oliveira
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research

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Abstract Understanding patterns and trends of antimicrobial resistance (AMR) in Salmonella Typhi can guide empiric treatment recommendations and contribute to country decisions about typhoid conjugate vaccine (TCV) introduction. We systematically reviewed PubMed and Web of Science for articles reporting the proportion of Salmonella Typhi isolates resistant to individual antimicrobials worldwide from any time period. Isolates resistant to chloramphenicol, ampicillin, and trimethoprim-sulfamethoxazole were classified as multidrug resistant (MDR), and isolates that were MDR plus resistant to a fluoroquinolone and a t...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
Conclusion: The prevalence of bacterial isolates among presumptive patients suspected to BSIs in Ethiopia remains high. Furthermore, we found a remarkable variation in the pathogen distribution across the study setting. PMID: 32963541 [PubMed]
Source: International Journal of Microbiology - Category: Microbiology Tags: Int J Microbiol Source Type: research
Publication date: Available online 23 September 2020Source: Journal of Global Antimicrobial ResistanceAuthor(s): Yingjian Wang, Luhan Zhang, Tianye Niu, Ye Feng
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
ConclusionOur findings reveal a distinct susceptibility pattern across the various study regions in Africa, with notably high rates of ESBL-producing Enterobacterales and ciprofloxacin-resistant nt Salmonella in Burkina Faso. This highlights the need for local AMR surveillance and reporting of resistances to support appropriate action.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
This study was designed to determine the AR profiles and serovars distribution of Salmonella enterica isolated from different breeds of breeder chickens in the province of Henan, China. For this, 2,139 dead embryo samples were collected from 28 breeder chicken hatcheries, representing two domestic and four foreign breeds. The samples were subjected to the isolation and identification of Salmonella by PCR. The confirmed strains were serotyped according to the Kauffmann-White scheme and their AR profiles against 20 antimicrobial agents were determined by Kirby-Bauer (K-B) disc diffusion method. The results of this study show...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Abstract For decades, Salmonella Typhimurium and Salmonella Enteritidis have prevailed in several countries as agents of salmonellosis outbreaks. In Brazil, the largest exporter of poultry meat, relatively little attention has been paid to infrequent serovars. Here, we report the emergence and characterization of rare serovars isolated from food and related sources collected between 2014 and 2016 in Brazil. Twenty-two Salmonella enterica isolates were analyzed through the use of whole-genome sequencing (WGS) and clustered regularly interspaced short palindromic repeats (CRISPR) genotyping. These isolates were clas...
Source: Food Microbiology - Category: Food Science Authors: Tags: Food Microbiol Source Type: research
Publication date: Available online 11 September 2020Source: Food ControlAuthor(s): Federica Giacometti, Annalisa Pezzi, Giorgio Galletti, Marco Tamba, Giuseppe Merialdi, Silvia Piva, Andrea Serraino, Silva Rubini
Source: Food Control - Category: Food Science Source Type: research
In this study, we evaluated the prevalence of Salmonella spp. and its serotypes Typhimurium and Enteritidis, antimicrobial susceptibility and multidrug resistance (MDR) status, and seasonal variation, of Salmonella spp. in irrigation water of King Abdullah Canal (KAC) and Wadi Shueib (WS) in Jordan. The study results demonstrated that 32.2% (29/90) of irrigation water was contaminated with Salmonella spp. and the irrigation water of WS was found highly contaminated (62.1%) with Salmonella spp. compared to KAC (37.9%). In addition, higher prevalence of Salmonella were recorded in spring (33.3%) and summer (36.3%) seasons, c...
Source: Current Microbiology - Category: Microbiology Authors: Tags: Curr Microbiol Source Type: research
Abstract BACKGROUND: Nontyphoidal Salmonella (NTS) are associated with both diarrhea and bacteremia. Antimicrobial resistance (AMR) is common in NTS in low-middle income countries, but the major source(s) of AMR NTS in humans are not known. Here, we aimed to assess the role of animals as a source of AMR in human NTS infections in Vietnam. We retrospectively combined and analyzed 672 NTS human and animal isolates from four studies in southern Vietnam and compared serovars, sequence types (ST), and AMR profiles. We generated a population structure of circulating organisms and aimed to attribute sources of AMR in NTS...
Source: Infection, Genetics and Evolution - Category: Genetics & Stem Cells Authors: Tags: Infect Genet Evol Source Type: research
This study investigated the prevalence, serovar distribution, antimicrobial resistance, and pulsed field gel electrophoresis (PFGE) typing of Salmonella enterica isolated from Lake Zapotlán, Jalisco, Mexico. Additionally, the association of the presence of Salmonella with physicochemical and environmental parameters was analyzed using Pearson correlation analysis and principal component analysis (PCA). Salmonella spp. were identified in 19 of 63 (30.15%) samples. The prevalence of Salmonella was positively correlated with air temperature, electrical conductivity, pH, and dissolved oxygen and negatively correlated wi...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
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