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1985年秋,在一次甲型肝炎(甲肝)流行中,对4例甲肝病人从潜伏期末开始,进行定期实验室检测,现将观察结果报告如下: 材料与方法一、病例调查:对甲肝密切接触的易感者从病前3～9天开始收集粪便,列为医学观察对象,定期采血检验。按1984年南宁肝炎会议标准诊断,其后定期随访。二、肝功检查:SG PT改良赖氏法≥40u为异常,尿胆素、黄疸指数等用常规方法检查。三、粪便收集和检测:从其相关传染源发病前10天即粪便开始排毒时间,作为可能感染日期。20天后,易感者如被感染,推测这个二代感染者粪便将从此开始排毒。从此时至病后17天,
In the autumn of 1985, in a Hepatitis A (hepatitis A) epidemic, four cases of hepatitis A patients from the end of the incubation period for regular laboratory testing, the observations are reported as follows: Materials and methods First, the case investigation: close contact with hepatitis A Susceptible from the sick 3 to 9 days before collecting stool, as a medical observation object, regular blood tests. By 1984 Nanning Hepatitis meeting standard diagnosis, followed by regular follow-up. Second, liver function tests: SG PT improved Lai’s Law ≥ 40u as an exception, urobilinogen, jaundice index and other methods used to check. Third, the collection and detection of faeces: from the relevant source of infection 10 days before the onset of detoxification time, as the possible date of infection. After 20 days, if the susceptible person is infected, it is assumed that this second-generation infected manure will detoxify from then on. From this time until after the illness 17 days,