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目前,甲型肝炎抗体的检测方法虽尚不能应用于临床诊断,但可用以进行血清流行病学研究。本文报告以免疫吸附血凝法检测纽约市区两组儿童甲型肝炎抗体的分布情况。一组为106例非肝病住院患儿,各年龄组的性别、种族大致相同,其中绝大多数的生活水平较低。另一组为某医院两个病室的68名住院儿童,年龄1～5岁(平均33个月)。于1968及1969两年,其中1个病室的工作人员和病人间发生了肝炎流行。在两次
At present, although the detection method of hepatitis A antibody can not be applied to clinical diagnosis, it can be used for the study of serum epidemiology. This article reports the use of immunoadsorption hemagglutination test for the distribution of hepatitis A antibodies in two groups of children in New York City. One group consisted of 106 children hospitalized with non-liver disease. The gender and ethnicity of all age groups were about the same, with the vast majority of them living at a lower level. The other group consisted of 68 hospitalized children, aged 1 to 5 years (mean, 33 months), in two wards of a hospital. In both 1968 and 1969, a hepatitis epidemic occurred between staff and patients in one of the wards. In twice