1998年夏季湖北省发生洪涝灾害 ,为了解受灾地区 1～ 2 5岁健康人群中甲肝 Ig G抗体的分布 ,以及受灾因素对甲肝感染的影响及甲肝隐性感染情况 ,于 1999年 3月分别抽取了灾区及非灾区各 1个县市共计 2 0 0 4份标本进行了监测 ,并进行了对比分析。两县市总流行率为 72 .85 % ,其中洪湖市 (灾区 )为73 .0 1% ,红安县 (非灾区 )为 72 .7% ,两县无显著性差异 ,与 1992年肝炎流行病学调查结果相比 ,也无显著性差异。表明洪湖市并未因受灾而出现甲肝暴发 In the summer of 1998, floods and floods occurred in Hubei Province. In order to understand the distribution of IgA antibodies against hepatitis B in the healthy population from 1 to 25 years old in affected areas and the impact of the affected factors on hepatitis A and the latent infection of hepatitis A, A total of 200 specimens from 1 affected counties in both disaster-hit and non-hit areas were monitored and compared. The prevalence rate of the two counties and cities was 72.85%, of which 73.01% in Honghu (disaster area) and 72.7% in Hong’an County (non-disaster area). There was no significant difference between the two counties and the 1992 epidemic of hepatitis Compared with the survey results, there is no significant difference. That did not occur in Honghu City, hepatitis A outbreak caused by the disaster