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为了解沙市地区甲肝流行规律,预测流行趋势,防止疫情多发与暴发,笔者对我市1992年罹患的814.例甲肝患者进行了流行病学调查分析,现将结果报告如下.
In order to understand the prevalence of hepatitis A in Shashi area, predict the epidemic trend and prevent the occurrence and outbreak of the epidemic, the author conducted an epidemiological investigation and analysis of 814 cases of hepatitis A patients in our city in 1992. The results are reported as follows.