乙型肝炎病毒感染在社会上有成簇集聚的倾向,一个家庭内往往有好几个澳抗(HBsAg)阳性的成员。家庭内传播的危险性和接触的时间及密切程度有关,数年以上的长期接触,常导致大部分家庭成员受感染,但大多表现为亚临床型,就是没有明显的症状或体征,只有经肝功能或血清学标志的检查才被发现。对于家庭中的澳抗阳性成员来说,应注意个人卫生,妇女特 Hepatitis B virus infection tends to cluster in the community, and there are often several members of a family that are positive for anti-HBsAg (HBsAg). The risk of transmission within the family is related to the timing and closeness of exposure. Long-term exposure for more than a few years often leads to the infection of most family members, but most of them are subclinical and have no obvious symptoms or signs. Only the liver Examination of functional or serological markers was discovered. For Australian anti-positive members of the family, attention should be paid to personal hygiene and women’s special needs