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本文对两个农村甲型病毒性肝炎(HA)暴发流行做了追踪调查。HA罹患率为6.0％(39/651)及7.3％(42/579)。感染率为11.4％(74例)及9.8％(57例)。儿童甲肝显性与隐性感染之比为1.4:1.0。病人SGPT病后两周均升高,对诊断最有意义。抗HAV-IgM在发病前2天即可检出,病后1个月检出率100％,s/co值高。病后4个月仍100％阳性,s/co值下降,对流行病学调查仍有意义。
In this paper, two rural hepatitis A (HA) outbreaks were traced. HA attack rates were 6.0% (39/651) and 7.3% (42/579). The infection rates were 11.4% (74 cases) and 9.8% (57 cases). Hepatitis A in children with dominant and latent infection ratio of 1.4: 1.0. Patients with two weeks after SGPT disease increased, the most meaningful diagnosis. Anti-HAV-IgM can be detected 2 days before the onset, the detection rate of 100% 1 month after the illness, s / co value is high. Four months after the illness is still 100% positive, s / co value decreased, the epidemiological survey is still meaningful.