Diarrheagenic Escherichia coli pathotypes isolated from a swine farm in a region of Morelos state, Mexico

Salud Pública de México

Elsa María Tamayo-Legorreta¹  Fabián Téllez-Figueroa¹  Alejandro García-Radilla¹  Eduardo Moreno-Vázquez¹  Celia M Alpuche-Aranda¹ 

[1] Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico.;

关键词: diarrheagenic escherichia coli;    virulence genes;    swine;    escherichia coli;    diarrhea;    swine;    mexico;   

DOI  :  10.21149/11268

来源: DOAJ

【 摘 要 】

Objective. Determine the frequency of diarrheagenic Escherichia coli pathotypes colonizing swine. Materials and Methods. E. coli strains isolated of fecal samples from 280 swine, produced for local consumption, in a semi-technical farm of Morelos state, (central Mexico) were tested to identify the diarrheagenic E. coli pathotypes by multiplex PCR. Results. Of the 521-diarrheagenic E. coli isolates examined, 50 (9.6%) were positive for at least one virulence gene in 42 different animals. Thus, 15% (42/280) of the swine in this farm were colonized with pathogenic E. coli. Among the E. coli isolates, the pathotype EPEC (6.5%) was the most frequently, followed by EHEC (2.3%), ETEC and EIEC (0.4%). Conclusions. In this study, four different E. coli pathotypes were found among swine colonized by E. coli in this farm. Thus, these swine are reservoirs for these virulent bacteria and there is potential risk of causing diarrhea in swine and in the population consuming the meat.

【 授权许可】

Unknown