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甲型病毒性肝炎 (简称甲肝 )已成为严重危害人民身体健康的重要公共卫生问题。由于甲肝具有传染性强、发病率高、流行范围广、传播迅速、传播途径广泛且易实现等特点 ,部分病例病情较轻且常呈隐性感染不易引起人们的注视 ,给其防制工作带来了极大的难度。通过开展对甲肝发病率
Hepatitis A virus (referred to as Hepatitis A) has become an important public health problem that seriously endangers people’s health. Hepatitis A is characterized by its strong infectivity, high incidence, wide epidemic, rapid spread, wide spread and easy-to-implement characteristics. In some cases, the condition is mild and the latent infection is often not easily caused by people’s attention. Great difficulty came. Through the incidence of hepatitis A