【摘要】 <正> 病毒性肝炎是当前发病率较高的一种传染病,其中乙型肝炎病程长,预后差,尤其是无症状 HBsAg 携带者数量多,携带时间长,活动范围广。为了探索无症状HBsAg 携带者的传染性及其危害程度,更多还原

【Abstract】 A seroepidemiological survey with cluster sampling of hepatitis B was carried out in the suburbs of Hefei among 2,2 64 persons in 613 families from Nov.to Dec.1981.The results indicated that the preva- lence rate of HBsAg was 7.37% and the rate in the children and adolescent group was the highest.The anti—HBs prevalence rate was 1.43% (PHA method)and it was lower than the other districts.The sex distribution of HBsAg rate was the same as the other districts at home and abroad.The prevalence rate of HBsAg decreased versus age and the rate in the group under 15-yaars old was the highest.It sug- gested that the carrier state would be self-limited.The family cl- usting of HBsAg carriers was distinct and transmission to children from HBsAg positive mothers was an especial transmitting method.更多还原