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自1978年5月20日起,某部木材加工厂相继发生一批以发热症状为主的病人,其临床表现轻重不一。经302医院传染病防治队和海军后勤部工建处卫生所流行病学调查、临床资料分析和实验室检查结果,确定为伤寒杆菌引起的食源型伤寒暴发流行。现将调查结果报告如下。流行特征一、发病率:从1978年5月20日至6月6日,全厂先后共发生病人22例,其发病率为12.64%。二、发病的时间分布:5月20日开始出现病例,继之有类似病人相继发生,5月 28日和29日以及6月2日出现的病例较多,6月6日以后疫势即告平息。全部病例均发
Since May 20, 1978, a group of wood processing plants have occurred in a group of patients with fever-based symptoms, the clinical manifestations of varying severity. The epidemiological investigation, clinical data analysis and laboratory test results of the 302 Hospital Infectious Disease Prevention and Control Team and the Navy Logistics Department’s Hygienic Institute Health Center confirmed the outbreak of food-borne typhoid fever caused by Salmonella typhi. The survey results are reported below. Prevalence of a characteristic incidence: from May 20, 1978 to June 6, the whole plant has a total of 22 cases of patients, the incidence was 12.64%. Second, the onset of the time distribution: May 20 began to appear cases, followed by similar patients have occurred, May 28 and 29, and June 2 cases appear more, June 6 after the epidemic will be reported calm. All cases were made