一起新生儿伦敦沙门菌感染流行病学调查及分析

Epidemiological analysis of one case of neonatal London Salmonella infection

目的通过对一起新生儿伦敦沙门菌感染事件进行调查与分析,总结预防控制经验,为防止该类事件的发生提供依据。方法于2011年12月29日-2012年1月13日调查新生儿内科108例患儿临床资料,采取现况调查与回顾性调查相结合的方法,对该次事件中的感染病例进行流行病学调查和环境卫生学监测,并分析存在的危险因素。结果该次事件共持续16d,调查病例108例,发现感染病例33例,罹患率为30.56%,时间分布呈现细菌性食源性疾病的流行特点,空间分布有聚集性,环境卫生学监测结果显示污染的环境和手是造成沙门菌属感染传播的重要途径,暴露于ICU、食用早产儿奶、接触护理人员是危险因素。结论此次腹泻事件是一起由细菌性食源性疾病引起的疑似感染暴发事件,通过采取综合防控措施该事件得到有效控制。

OBJECTIVE To investigate and analyze one case of neonatal London Salmonella infection and summarize the experience of prevention of such incident so as to control the London Salmonella infection.METHODS The clinical data of 108children who were treated in department of pediatrics from Dec 29,2011 to Jan 13,2012 were investigated.The epidemiological investigation of the infection case and the environmental hygiene monitoring were performed by means of prevalence survey combined with retrospective investigation,then the risk factors were analyzed.RESULTS A total of 108cases were investigated and 33cases of infection were found during the event which lasted for 16days,and the attack rate was 30.56%.The time distribution of prevalence was characterized by the bacterial foodborne diseases,and the space distribution showed an aggregation.The result of environmental hygiene monitoring indicated that the contaminated environment and hands were the main routes for the transmission of London Salmonella infection.The exposure to ICU,consumption of milk for the preterm,and contact with nursing staff were the risk factors.CONCLUSIONThe incident of diarrhea is one case of suspected infection that is caused by the bacterial foodborne diseases,which has been effectively controlled through implementation of comprehensive prevention measures.