Different Multidrug-Resistant Salmonella spp. Serovars Isolated from Slaughter Calves in Southern Brazil.
Alex Dall Agnol GabanaAdriana Souto Pereira NúncioBruna Correa LopesJúlia Alves de OliveiraLuana da Silva MonteiroMario de Menezes CoppolaThales Quedi FurianKaren Apellanis BorgesLaura Beatriz RodriguesFabiana Quoos MayerPublished in: Current microbiology (2022)
Bovines are carriers of Salmonella spp., a relevant foodborne pathogen, acting as contamination sources in slaughterhouses. Calves are prone to infection, and antimicrobial resistance may occur in such bacteria. This study aimed to determine the prevalence and virulence determinants of Salmonella spp. recovered from calves in the Rio Grande do Sul state, Brazil. Eighty-five calves' carcasses were evaluated (leather and veal meat). Thirteen Salmonella spp. isolates (8%) from 11 animals (13%) were obtained only from leather, indicating that contamination occurred before slaughter and that the meat was safe regarding this aspect. The serotypes S. Minnesota, S. Abony, S. Cerro, and S. Gafsa were identified, and all isolates were multidrug-resistant. The isolates had at least 19 virulence-related genes, and the bla OXA-48 resistance gene was detected in three (23%). The data suggest that treating infections caused by these bacteria may be difficult in animals from these farms and can also be an extended human health problem.
Keyphrases
- escherichia coli
- antimicrobial resistance
- human health
- multidrug resistant
- klebsiella pneumoniae
- risk assessment
- listeria monocytogenes
- acinetobacter baumannii
- drinking water
- pseudomonas aeruginosa
- drug resistant
- gram negative
- climate change
- biofilm formation
- staphylococcus aureus
- risk factors
- health risk
- genome wide
- electronic health record
- genetic diversity
- dna methylation
- heavy metals
- copy number
- artificial intelligence