Prevalence of (high-pathogenicity island) HPI-harboring Escherichia coli in diarrheic and healthy piglets
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : DaRong Cheng1*, XiaoLang Chen1, ShanYuan Zhu2, WenWei Ding1, ZhiXia Mu1 and Jun Zhou2
- چاپ و سال / کشور: 2010
Description
One hundred and sixty four rectal swab samples were collected from 110 live diarrheic piglets and 54 healthy piglets during an investigation on the prevalence of HPI-harboring Escherichia coli (HPI + E. coli) infection associated with porcine diarrhea. The data of polymerase chain reaction (PCR) revealed the presence of HPI + E. coli in 58.18% of swabs taken from diarrheic piglets, while 44.44% of samples taken from healthy pigs were so positive. Further PCR examination of 600 bacterial isolates from diarrheic samples revealed that 25 isolates were HPI + E. coli while 4 (16%) were F4+, 2 (8%) were F4+ and F6+, 2 (8%) were F4+ and F6+, and one (4%) was F6+, LTa+ and STb+. Among the 480 bacterial isolates from non-diarrheic samples, 20 isolates were HPI + E. coli, and only one (5%) was LTa+ and STb+, while absence of isolates belonging to the F4+ and F6+ groups was noted. O138 was the vast prevalent serotype among the HPI +E. coli isolates. It is suggested that HPI + E. coli maybe an opportunistic pathogen in swine.
Journal of Metabolomics and Systems Biology Vol. 1(1), pp. 1 - 4, August 2010 Accepted 17 June, 2010
