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很多作者报道无症状的乙型肝炎相关抗原(HAA)带毒者、慢性肝炎、肝硬化、甚至肝癌可在家庭成员中成群发生。本文报告HAA阳性献血员的家庭接触者感染乙型肝炎的调查结果,并与对照组进行比较,从而探讨病毒的传播机制,以及与环境和遗传因素等关系。 HAA持续阳性4个月以上的献血员的家庭才作为研究对象,共调查了197个家庭,家庭接触者449人。另外从大量的HAA阴性献血员中抽样107人,访问和调查了他们的家庭成员247人。两组年
Many authors report that asymptomatic hepatitis B associated antigen (HAA) carriers, chronic hepatitis, cirrhosis, and even liver cancer can occur in groups of household members. This article reports the results of a survey of hepatitis B among family contacts of HAA-positive donors and compares them with control subjects to explore the mechanisms of viral transmission and its relationship with environmental and genetic factors. HAA persistently positive for more than 4 months before the blood donors as a research object, a total of 197 families, 449 family contacts were investigated. In addition, 107 people were sampled from a large number of HAA negative donors, and 247 of their family members were interviewed and investigated. Two groups of years