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  • Title: [A sero-epidemiological study on HBV infection in a farm].
    Author: Tan H.
    Journal: Zhonghua Liu Xing Bing Xue Za Zhi; 1990 Dec; 11(6):334-7. PubMed ID: 2276181.
    Abstract:
    A seroepidemiological study on HBV infection was carried out in a farm with a population of 777. HBsAg, anti-HBs and anti-HBc were tested with SPRIA; HBeAg and anti-HBe with ELISA and HBV DNA with spot hybridization. The results showed that: 1. in HBeAg negative individuals, the positive rate of HBV DNA was 9.33%, as a result, the infectivity of HBsAg carriers could not be estimated accurately with HBeAg examination only; 2. among the total HBV infected individuals, the positive rate of HBsAg of the males was significantly higher than that of the females (51.38% vs 38.89%, P less than 0.005), indicating the difference of response to HBV between males and females; 3. in anti-HBs positive individuals, 42.53% were anti-HBs positive alone, of which, 78.72% had evidence of HBV infection four years before the examination, indicating that the majority of persons who had anti-HBs alone were specifically responsive to HBV.
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