[A prospective study of dynamic and epidemic factor of HBV infection in the army].

In order to study the HBV infection in the army a total of 519 HBV susceptibles were observed prospectively for five years. The results showed that the cumulative infection rate of HBV was 16.12/1000 person-years and the latent infection was in the majority. There are many factors that could affect army population, the rate of HBsAg positive and the contact history with HB patients were indirect correlation with the rate of new HBV infection. Therefore it is an urgent matter to manage asymptomatic HBsAg carriers and HB patients in the army.