Caracterização do perfil de resistência antimicrobiana de Salmonella spp isoladas durante o abate de rãs-touro (Lithobates catesbeianus) na região do Triângulo Mineiro.

Abstract

One of the great problems of the world population today is the contamination by pathogenic microorganisms that cause problems in the public health systems and the economy of the country. In addition, strains have become increasingly resistant due to several factors, such as the misuse of antibiotics. The present study aimed to identify strains of Salmonella spp. collected from bullfrog (Lithobates catesbeianus) at the slaughterhouse located at the experimental farm of Glória, owned by the Federal University of Uberlândia (UFU). The selected spots were after the desensitization (A), after skinning (B), after evisceration (C) and before packing (D). The collected samples were submitted to the identification protocol of Salmonella spp according to ISO 6579 and confirmed by PCR using the ompC gene. A total of 9 isolates could be confirmed at different sites and tested for antimicrobial resistance in 10 different antimicrobials, and found an ability to resist Ampicillin (89% of strains), Erythromycin (89%), Cephalexin (56%), Ciprofloxacin (33%), Cefotaxime (22%), Ceftriaxone (11%), Azithromycin and Neomycin, and the fact that all samples were sensitive to Meropenem and Tobramycin. The resistance profile of these samples was drawn and it was noticed that there was no defined pattern of susceptibility, since the strains responded differently to each antimicrobial, there being only one profile in which two samples fit (Profile H), which may be a consequence of the collection of several Salmonella serotypes. The results indicate the presence of Salmonella in the bullfrog slaughter line and the existence of different resistance patterns and multirresistance in the same class of bacteria, which may be problematic for the treatment of the diseases caused by her, since Salmonella is an important pathogen that causes foodborne illness