title: High prevalence and variability of CTX-M-15-producing and fluoroquinolone-resistant Escherichia coli observed in stray dogs in rural Angola.
abstract: Antimicrobial resistance (AMR) represents a serious problem globally, but it is especially pronounced in the tropics, where pressure of infectious diseases is high. We examined resistance in Escherichia coli colonizing gastrointestinal tracts of 17 dogs which have never received antimicrobial treatment, living in central rural Angola. Emphasis was placed on extended-spectrum beta-lactamases (ESBL) and plasmid-mediated quinolone resistance (PMQR). Resistance-carrying plasmids were characterized in size, group of incompatibility and ability to conjugate. Isolates were compared by their pulsed-field gel electrophoresis (PFGE) profiles. Detailed description of 19 E. coli isolates with either ESBL or PMQR genes carried on multiresistant plasmids of different groups of incompatibility indicates that dogs, despite never being treated by antibiotics, are important reservoirs and transmitters of AMR in the study area.
authors.affiliation: 1 Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno , Brno, Czech Republic .
authors.forename: Katerina
authors.initials: K
authors.lastname: Albrechtova
authors.forename: Michaela
authors.initials: M
authors.lastname: Kubelova
authors.forename: Jana
authors.initials: J
authors.lastname: Mazancova
authors.forename: Monika
authors.initials: M
authors.lastname: Dolejska
authors.forename: Ivan
authors.initials: I
authors.lastname: Literak
authors.forename: Alois
authors.initials: A
authors.lastname: Cizek
mesh_terms: D000810:Angola / Q000453:epidemiology; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003227:Conjugation, Genetic; D004197:Disease Reservoirs; D004283:Dog Diseases / Q000188:drug therapy* / Q000453:epidemiology / Q000382:microbiology; D004285:Dogs; D024901:Drug Resistance, Multiple, Bacterial; D016521:Electrophoresis, Gel, Pulsed-Field; D004926:Escherichia coli / Q000145:classification / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics; D004927:Escherichia coli Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D041981:Gastrointestinal Tract / Q000382:microbiology; D015870:Gene Expression; D008826:Microbial Sensitivity Tests; D010802:Phylogeny; D010957:Plasmids; D015995:Prevalence; D001618:beta-Lactamases / Q000235:genetics* / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; C473109:beta-lactamase CTX-M-15; D001618:beta-Lactamases