| Texto completo | |
| Autor(es): |
Rueda Furlan, Joao Pedro
;
Lage Gallo, Inara Fernanda
;
Pires de Campos, Anna Carolina Leonelli
;
Passaglia, Jaqueline
;
Falcao, Juliana Pfrimer
;
Navarro, Armando
;
Nakazato, Gerson
;
Stehling, Eliana Guedes
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PATHOGENS AND GLOBAL HEALTH; v. 113, n. 6, p. 7-pg., 2019-11-22. |
| Resumo | |
Shiga toxin-producing Escherichia coli (STEC) colonize the gastrointestinal tract of animals; however, STEC may also cause severe diarrheal diseases. Food-producing animals have been acting as reservoirs and disseminators of multidrug-resistant (MDR) bacteria and antimicrobial resistance genes (ARGs); however, there are few studies characterizing molecularly bacterial isolates from sheep. Therefore, this study aimed to characterize E. coli isolates obtained from feces of sheep in a Brazilian farmhouse. A total of 14 MDR E. coli isolates were obtained from 100 feces samples, six of which were classified as non-O157 STEC (stx1, stx2 and ehxA). MDR E. coli isolates presented different ARGs [bla(CTX-M-Gp9), bla(CMY), bla(SHV), qnrS, oqxB, aac(6')-Ib, tet(A), tet(B), tet(C), sul1, sul2, and cmlA] and plasmids (IncI1, IncF(repB), IncFIB, IncFIA, IncHI1, IncK, and ColE-like). In addition, mutations in the quinolone-resistance determining region of GyrA (Ser83Leu; Asp87Asn) and ParC (Glu84Asp) were detected. PFGE showed a high genetic diversity (30.9 to 83.9%) and thirteen STs were detected (ST25, ST48, ST155, ST162, ST642, ST1247, ST1518, ST1725, ST2107, ST2522, ST3270, ST5036, and ST7100). Subtyping of the fimH gene showed seven fimH-type (25, 32, 38, 41, 54, 61, and 366). The results found in the present study showed high genetic diversity among MDR ARGs-producing E. coli obtained from a farmhouse. This study reports for the first time, the presence of MDR STEC and non-STEC belonging to ST25, ST162, ST642, ST1247, ST1518, ST1725, ST2107, ST3270, ST5036, and ST7100 in sheep, and contributes to the surveillance studies associated with One Health concept. (AU) | |
| Processo FAPESP: | 18/19539-0 - Caracterização molecular de isolados de Escherichia coli provenientes do meio ambiente |
| Beneficiário: | Eliana Guedes Stehling |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |