一起丙型副伤寒暴发疫情的调查分析

目的　查明重庆市南岸区一起丙型副伤寒暴发疫情的流行特征和影响原因。方法　用现场流行病学的调查方法。结果　本次疫情共计发现病例59例(其中实验室确诊34例,临床诊断25例),无死亡,罹患率为49.6%,带菌者16例,感染率为63.0%。所有感染者参加了某酒楼的聚餐。 结论　该起疫情为因食品污染而引起的丙型副伤寒暴发疫情。

Epidemiological investigation of an outbreak of paratyphoid C

Objective The study was conducted to identify the epidemiological characteristics and influential factors of the paratyphoid C outbreak in Nan'an district, Chongqing.Methods Field epidemiological investigation was conducted.Results A total of 59 cases(34 laboratory-confirmed and 25 clinically established) were found in the epidemic outbreak without death cases.The attack rate was 49.6 percent.16 carriers were found, the infection rate being 63.0 percent.All infected patients were found to have attended the dinner in a same restaurant.Conclusion The epidemic was confirmed to be a paratyphoid C outbreak as a result of food contamination.