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[目的]了解烟台市农村居民戊型肝炎病毒(HEV)感染状况,为戊肝防制提供基本的依据。[方法]2011年5月,在烟台市的蓬莱市、莱阳市、龙口市抽取20岁以上农村居民492人进行血清抗-HEV IgG检测。[结果]调查492人,抗-HEV IgG阳性的189例,阳性率为38.41%。抗-HEV IgG阳性率,男性为41.54%,女性为34.13%(P>0.05);20～29岁为1/9,30岁以上各年龄组均在30%以上(P>0.05);蓬莱市为40.66%,莱阳市为39.33%,龙口市为35.00%(P>0.05);经常喝生水的为51.69%,偶尔喝生水的为42.68%,不喝生水的为30.80%(P<0.01);饮用农村集中供水者为33.80%,饮用地下水者为40.54%,饮用露天井水者为62.50%(P<0.05);自家或邻居有牲畜圈的为55.17%,无牲畜圈的为36.18%(P<0.01)。[结论]烟台市部分农村居民HEV感染率较高,卫生状况不良和水源污染可能是HEV感染的重要原因。
[Objective] To understand the status of hepatitis E virus (HEV) infection among rural residents in Yantai City and provide a basis for prevention and control of hepatitis E. [Methods] In May 2011, 492 rural residents over the age of 20 were sampled from Penglai City, Laiyang City and Longkou City of Yantai City for anti-HEV IgG detection. [Results] The survey of 492 people, anti-HEV IgG positive 189 cases, the positive rate was 38.41%. The positive rate of anti-HEV IgG was 41.54% in males and 34.13% in females (P> 0.05). The prevalence of anti-HEV IgG was 1/9 in 20-29 years old and over 30% in all age groups 30 and over (P> 0.05) 40.66% in Laiyang City, 39.33% in Laiyang City and 35.00% in Longkou City (P> 0.05). The prevalence of raw water was 51.69%, that of occasional raw water was 42.68%, and that of raw water was 30.80% (P < 0.01); 33.80% were drinking rural centralized water supply, 40.54% drinking groundwater and 62.50% drinking open-air water (P <0.05); 55.17% of livestock farms in their own homes or neighbors, and 36.18 no livestock farms % (P <0.01). [Conclusion] The infection rate of HEV in some rural residents in Yantai City is high, and the hygienic condition and water pollution may be the important cause of HEV infection.