云南省猪戊型肝炎血清流行病学调查

A Seroepidemiological Survey on Swine Hepatitis E Virus Infection in Yunnan Province

为了解云南省猪群戊型肝炎流行情况,从各地养猪场、屠宰场共采集270份血清,应用双抗夹心酶联免疫测定法(DS-ELISA)进行血清学调查。检测结果174份样品呈HEV-IgG抗体阳性,总阳性率64.4%,其中养殖场血清抗体阳性率为55.6%,屠宰厂为68.9%。比较养殖场的各年龄阶段猪群显示,母猪群血清抗体阳性率最高,为71.4%。本研究表明猪戊型肝炎在云南省也有存在,并呈一定的流行趋势,感染率随年龄增长而升高。

To investigate the prevalence of Swine HEV infection in Yunnan province, the HEV - IgG antibody was applied to screen the swine sera collected from slaughter houses and pig farms with commercial DS-ELISA kit. Our data indicated that among 270 sera samples tested, 174 swine serum samples were positive for HEV - IgG antibody, the seroprevalence rate was 64.4% in general, 55.6% for pig farms and 68.9% for slaughter houses, respectively. Among groups with different ages, the seroprevalence of sows was 71.4%, higher than that of others. It was shown that swine hepatitis E was endemic in Yunnan province, and the seroprevalenee increased with the age.