La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY 4.0 Internacional, https://creativecommons.org/licenses/by/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico vetmexicooa@fmvz.unam.mx.
Ver términos de la licenciaAnduro Jordan, Julio Armando, et al. (2022). STEC non-0157 strains in meat from Southern Sonora, Mexico and its antibiotic resistance. Veterinaria México OA; Vol. 9, 2022. Recuperado de https://repositorio.unam.mx/contenidos/4133769
Autor(es)
Anduro Jordan, Julio Armando; Maldonado Mendoza, Ignacio Eduardo; Figueroa López, Alejandro Miguel; Torres Vitela, María Del Refugio; Campas Baypoli, Olga Nydia; Sánchez Machado, Dalia Isabel; Cantú Soto, Ernesto Uriel
Tipo
Artículo de Investigación
Área del conocimiento
Biotecnología y Ciencias Agropecuarias
Título
STEC non-0157 strains in meat from Southern Sonora, Mexico and its antibiotic resistance
Fecha
2022-10-21
Resumen
Escherichia coli is one of the most important bacteria associated with the consumption of meat products causing human disease, with bovines as the main reservoir for this organism. Microbiological quality of raw meat sampled at slaughterhouses was evaluated by measuring the presence of Escherichia coli serogroups that produce the Shiga toxin (referred to as STEC), including both O157:H7 and non-O157 strains can cause Hemolytic Uremic Syndrome (HUS). The purpose of this study was to detect STEC O157 and non-O157 in meat products from Federal Inspection Type (FIT, n=52) and non-FIT (n=88) slaughterhouses, as well as butcheries (n=50), in southern Sonora, Mexico. To achieve this aim, selective media were employed to obtain putative O157:H7 colonies (TS-SMAC agar and Rainbow® agar O157), followed by multiplex PCR for the stx1, stx2, eaeA, and rfB genes, using the O157:H7 serotype as a control. No STEC O157 was found in beef products, but some non-O157 isolates were found containing the stx2 pathogenicity gene (1.40%, 3/224) and/or the fliCH4 flagellar antigen (1.78%, 4/224). This work also confirmed the susceptibility of strains with the stx2 and/or fliCH4 genes to several antibiotics and multi-resistance of all or some of these strains to trimethoprim/sulfamethoxazole, tetracycline, clarithromycin, penicillin G, oxacillin, ampicillin and cefazolin. This study comprises the first report of STEC non-O157 in Sonora and will be useful to establish their association with foodborne outbreaks originating from beef and pork consumption in the future.
Tema
Antibiotic Resistance; Stec Non-o157; Meat
Idioma
eng
ISSN
ISSN electrónico: 2448-6760
