杭州市病毒性肝炎分布特征及其防制对策的研究

本文报道了应用前瞻性调查方法，对1987年杭州市城区、水网区、半山区和山区确诊的急性病毒性肝炎1248例血清病原学分型及流行病学调查，结果甲肝占69．71％，乙肝占7．13％，非甲非乙肝占21．96％，甲、乙肝混合感染占1．20％。城、乡均以甲肝占首位，非甲非乙肝次之。甲肝流行的主要危险因素有：①家庭使用马桶、坐坑；②接触肝炎病人；③喝生水。非甲非乙肝以肠道外传播型为主，看牙病（拔牙）是主要危险因素，在此基础上提出相应对策。

A Study on Distribution Characteristies of Viral Hepatitis and Preventive Strategy in Hangzhou

By using the method of predictive survey, 1248 cases of acute viral hepatitis, which have been definitely diagnosed, in urban district, water-net areas, semi-mountainous and mountainous areas in Hangzhou were studied for the epidemiology and serum pathogenic typing in 1987. As a result, with the mixed infection of hepatitis A and hepatitis B at the rate of 1.20%, hepatitis A 69.71%, hepatitis B 7.13% non A non B hepatitis amounted to 21.96%. In urban and rural area, the percentage of hepatitis A ranked first while that non A non B hepatitis did second. The main risky factors in epidemicity of hepatitis A were: 1) the use of commode; 2) contact with the patients with hepatitis; 3) drinking unboiled water. Hepatitis A and hepatitis B transmitted mainly in the way of extra-intestines. Seeing dentist was the main risky factor. The relevant strategy was presented on the bases of the above-mentioned data.