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1988年1月中旬至3月下旬,在上海市甲型肝炎流行期间,某部军人、职工也有流行发生。现分析如下: (一) 流行特征 1.流行形式:呈暴发流行。共发生甲型肝炎患者169例,发病率为5.99‰。首例病人发生于1月24日,末例为3月5日,其中2月上旬形成流行高峰。发病108例,占总例数的63.9％。2.人群分布:169例患者中,军人63例,占总例数的37.28％,发病率为2.64‰,职工106例,占总例数的62.72％。发病年龄为18～45岁,平均26.1岁。其中20岁以下14例,占总例数的8.28％;21～30岁123例,占总例数的72.78％;31～40岁
From mid-January 1988 to late March 1988, during the popularity of hepatitis A in Shanghai, a certain army of soldiers and workers also took a hit. Are analyzed as follows: (A) of the popular features 1 popular form: was outbreak. A total of 169 cases of hepatitis A patients, the incidence was 5.99 ‰. The first patient occurred on January 24, the last case of March 5, which formed the peak of the epidemic in early February. The incidence of 108 cases, accounting for 63.9% of the total number of cases. Population distribution: Among 169 patients, 63 were military personnel, accounting for 37.28% of the total number of cases, with an incidence rate of 2.64 per thousand and 106 workers, accounting for 62.72% of the total number of cases. The age of onset was 18 to 45 years old, with an average of 26.1 years. Among them, 14 cases under 20 years of age, accounting for 8.28% of the total number of cases; 123 cases 21 to 30 years old, accounting for 72.78% of the total number of cases; 31 to 40 years old