Prevalence of serogroups and genotypes for fimbriae and enterotoxins in <i>Escherichia coli</i> isolated from diarrheic piglets in western China
نویسندگان
چکیده
Porcine neonatal diarrhea and postweaning diarrhea caused by enterotoxigenic Escherichia coli (ETEC) result in significant morbidity and mortality and are economically important diseases of pigs.1 Secretory diarrhea associated with ETEC infection is mediated by any of several enterotoxins, including heat labile enterotoxin (LT), heat-stable enterotoxin-a (STa), and heat-stable enterotoxin-b (STb).2 Enterotoxigenic E coli colonization in the small intestine is primarily mediated by fimbriae that attach to receptors on villus enterocytes.3 Fimbriae, including K88 (F4), K99 (F5), 987P (F6), F18, and F41, are commonly found in porcine E coli strains, and ETEC strains expressing these fimbriae are clinically important in porcine diarrhea.4
منابع مشابه
Occurrence of F42 colonization factor in Escherichia coli strains isolated from piglets with diarrhea1
Penatti M.P.A., Silva A.S., Valadares G.F. & Leite D.S. 2005. Occurrence of F42 colonization factor in Escherichia coli strains isolated from piglets with diarrhea. Pesquisa Veterinária Brasileira 25(1):31-33. Depto Microbiologia e Imunologia, Instituto de Biologia, Unicamp, Campinas, SP 13081-970, Brazil. E-mail: [email protected] The objective of this study was to determine the presence of ...
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