论文部分内容阅读
目的查明疫情暴发的病原、传染来源、传播途径和相关危险因素,为有效防控疫情提供科学依据。方法采用现场流行病学调查和实验室检测相结合的方法对病例进行个案调查,并分别采集血清标本、咽拭子、痰标本、尿标本及外环境样本进行检测。结果某工厂两天内累计出现27例病例,发病时间集中在3月4日13:00~17:00;年龄最大39岁、最小18岁,平均24岁。全部是PCBA车间职工,同楼层其他车间工作人员未发现类似症状病例,PCBA车间职工罹患率为33%。实验室检测6份血液标本检出金黄色葡萄球菌,未检出嗜肺军团菌。结论根据病例的潜伏期、临床症状、诊疗方式、病程,推断为一起车间内庞蒂亚克热暴发疫情,由军团菌感染引起。
Objective To find out the pathogen, source of infection, route of transmission and related risk factors of the epidemic outbreak, so as to provide a scientific basis for effective prevention and control of epidemic situation. Methods A case study was conducted by field epidemiological investigation and laboratory test. Serum samples, throat swabs, sputum samples, urine samples and external environment samples were collected for detection. Results A total of 27 cases occurred within two days in a factory. The onset time was between 13:00 and 17:00 on March 4, the oldest was 39 years old and the youngest was 18 years old, with an average of 24 years. All PCBA workshop staff, other floor staff with similar symptoms found no case, PCBA plant workers attack rate was 33%. Laboratory tests 6 blood samples were detected Staphylococcus aureus, Legionella pneumophila not detected. Conclusions According to the incubation period, clinical symptoms, diagnosis and treatment, and course of disease, it is inferred that the outbreak of Pontiac fever in the workshop was caused by Legionella infection.