Identification of Escherichia coli O157:H7- strains from pigs with postweaning diarrhoea and amplification of their virulence marker genes by PCR

被引：13

作者：

Osek, J ^{[1
]}

机构：

[1] Natl Vet Res Inst, Dept Microbiol, PL-24100 Pulawy, Poland

来源：

VETERINARY RECORD | 2002年 / 150卷 / 22期

关键词：

D O I：

10.1136/vr.150.22.689

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

Escherichia coli isolated from pigs with postweaning diarrhoea were examined by PCR for the presence of the O157 rfb gene responsible for the biosynthesis of E coli O157 lipopolysaccharide. Among the 372 isolates tested, 38 (10.2 per cent) were of the O157 serogroup, but none of these possessed the H7 determinant Further analysis of the E coli O157 isolates revealed that seven of them had the genes responsible for the production of Shiga toxin I and eaeA intimin, four other strains had genes responsible for the production of Shiga toxin 2, and four other strains were positive for the enterohaemolysin gene.

引用

页码：689 / 692

页数：4

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