Investigation on E.coli O157 in Domestic Animals and Poultry in Fuzhou City

Objective To understand the distribution of E.coli O157 in domestic animals and poultry in Fuzhou city. Methods E.coli O157 was detected from five kind meats' specimens which were collected from food markets in Fuzhou City to detect from April to June in 1999. The effect factor of biological activity the isolated strains was fested. Results One hundred and thirty eight specimens of pig's meats were detected, and 3 strains of E.coli O157 were isolated. Two strains (P-99, P-128) belong to O157∶H7, One strain (P-94) O157:NM.Results of PCR-STL PCR-Hly tests were negative.But the strains could cause liquid accumulate in intestine of rats and resulted in death. The isolated strains might have some new pathogenic factors. Conclusion There were 2 types of E.coli O157 in Fuzhou City. The toxic factors of the isolated strains were different from the reference strains in China and foreign cou-ntries. The characters of heat tolerant,salt tolerant and acid tolerant were tested and discussed in this artide as well.