在有症状的病人,如果急性期单份血清可检测到高滴度的甲肝IgM抗体存在,很容易作出甲肝的诊断。但某些甲肝病人,症状可比体液免疫反应早应早几天出现,故有必要晚些时候联血以做出诊断。作者观察了4个病人,均近期到过甲肝为地方病的地区旅游(南欧、东南亚),并出现转氨酶中、高度升高,且近期没有服药史,故提示有病毒性肝炎的可能。在采集 In patients with symptomatic disease, diagnosis of hepatitis A can be easily performed if acute monocolonal serum can detect high titer IgM antibodies. However, in some Hepatitis A patients, the symptoms may occur earlier than the humoral immune response, so it is necessary to make blood tests later to make a diagnosis. The authors looked at four patients who had recently traveled to areas with endemic disease of hepatitis A (South Europe, South-East Asia) and were highly elevated in aminotransferases and did not have medication history recently, suggesting the possibility of viral hepatitis. In the collection