Peer-reviewed veterinary case report
Antibiotic resistance and types of E. coli in dog and cat urinary
By Osugui, L et al.·Published in Veterinary microbiology·2014·Department of Microbiology, Brazil·View original on PubMed →
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Original publication title: Virulence genotypes, antibiotic resistance and the phylogenetic background of extraintestinal pathogenic Escherichia coli isolated from urinary tract infections of dogs and cats in Brazil.
Plain-English summary
A study found that 43 pets, including 36 dogs and 7 cats, had urinary tract infections (UTIs) caused by a type of E. coli known for its ability to resist multiple antibiotics. The researchers identified various strains of this bacteria and noted that a significant portion was resistant to common treatments. In fact, 76% of the resistant strains came from certain genetic groups, raising concerns about the potential spread of these resistant bacteria between pets and humans. This highlights the importance of monitoring and treating UTIs in pets carefully to avoid complications.
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Abstract
Urinary tract infection (UTI) is a frequent disease of humans and pets and has extra-intestinal pathogenic Escherichia coli (ExPEC) strains as one of the main etiologic agent. ExPEC are characterized by specific virulence factors and are related to a heterogeneous group of human and animal disorders, besides to be a relevant participant in the dissemination of antimicrobial resistance. The purpose of this study was to characterize E. coli strains isolated from UTI of dogs and cats for serotypes, virulence markers, phylogenetic groups and sensitivity to antimicrobial drugs. E. coli was identified as the etiologic agent of UTI in urine samples of 43 pets (7 cats and 36 dogs). Serogroups O2, O4 and O6 corresponded to more than one third of the isolates, being 62% of the total strains classified as B2, 18% as D, 16% as B1 and 4% as A. The iucD (22%), fyuA (80%), traT (51%) and cvaC (20%) genes were distributed among the four phylogenetic groups, whereas the papC/papEF (47%) and malX (67%) genes were found only in groups B2 and D. There were a high number of resistant strains, with 76% of the strains belonging to groups A, B1 and D characterized as multidrug resistant (MDR), whereas only 21% had this phenotype in the group B2. The ExPEC strains isolated in this study displayed pathotypic and phylogenetic similarities with human isolates and high percentages of drug resistance. The finding of MDR ExPEC strains suggests implications for animal and public health and deserves more investigations.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24742952/