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一起甲型肝炎暴发的流行病学调查何维霞张丽１９９８年２月１０日－２８日，罗山县青山乡中心小学发生一起甲型肝炎爆发流行，经流行病学调查和实验室检测，证实为食源性污染和密切日常生活接触等混合因素引起甲型肝炎爆发。１流行情况１．１发病情况该小学共有学生４０３...
Epidemiological investigation of an outbreak of hepatitis A He Weixia Zhang Li From February 10 to February 28, 1998, a hepatitis A outbreak epidemic occurred at the Qingshan Township Central Primary School in Luoshan County. The epidemiological investigation and laboratory tests confirmed that Hepatitis A outbreaks are caused by mixed factors such as food-borne contamination and close daily life. 1 prevalence 1.1 incidence of the primary school a total of 403 students ...