浙江省不同地区病毒性肝炎感染分布特点的研究

在随机抽样的基础上，对我省不同地区的五型病毒性肝炎进行了流行病学分析。结果表明，我省人群存在甲、乙、丙、丁、戊五型肝炎的流行，主要是甲型和乙型，感染率分别高达７５．０６％和６７．３８％，甲肝感染率以山区半山区为最高８２．３６％；乙肝、丁肝感染率海岛分别为８３．２９％、７．４５％，超过其它地区（Ｐ＜０．０１）；城市点ＨＣＶ感染率明显高于农村点，而农村点ＨＡＶ、ＨＢＶ、ＨＤＶ、ＨＥＶ感染率高于城市点；海岛人群的ＨＢｓＡｇ阳性率２１．７０％是大城市７．９２％的２．７４倍，Ⅰ类农村的ＨＢＶ、ＨＣＨ、ＨＤＶ感染率均高于其它类型地区。

Study on the Characteristics of Distribution of ViralHepatites Infection in Different Regions of Zhejiang Province

On the basis of random samplin,the epidemiolical analysis of five types of viral hep-atitis in the different regions of Zhejiang Province was carried out.The analysis results showed that,there were five types of viral hepatitis-A,B,C,D and E-in the province,especially hepatitis type Aand B,with the infective rates of 75.06% and 67.33% respectievely.The highest infective rate of hepati-tis A 82.36%,was in the mountain and semi-moutain regions.The infectve rates of hepatitis B and hepatitis D 83.29% and 7.45% respectively were in islands,which were higher than those in the oth-er regions(P<0.01).The infective rates of HCV,HBV,HDV and HEV were higher than that in the ur-ban foci.The positive rate of HBsAg in the population of islands was 21.70% while that in the big city was 7.92%,which was 2.74 times less than former.The infective rates of HBV,HVH and HDV in I-class rural regions were higher than that in the other regions.