广州市1986～1995年伤寒暴发疫情分析

Typhoid Fever Outbreaks in Guangzhou from 1986 to 1995

根据广州市传染病年报及各暴发点专题报告统计，１９８６～１９９５年广州市伤寒发病率年均３６８／十万，维持在较低水平，同期伤寒暴发１８起，共８１４例病人，５例死亡，其中前５年发生３起（１６７％），后５年１５起（８３３％），有明显增加；平均病死率为０６１％，均为外省藉，死于肠穿孔、ＤＩＣ和ＨＵＳ；除６月份无暴发外，全年均有发生，１２个区和县级市中受涉８个，以城乡结合的城区和县级市居多，主要发生在羁留场所和工厂，共占６６６％；传播途径主要为水型和食物型；１０年间未发生副伤寒暴发。

Annual average incidence rate of typhoid fever in Guangzhou from 1986～1995 was 3.68 per 10 5. A total of 18 typhoid fever outbreaks,814 cases and 5 deaths had been reported in this period of time,3 outbreaks in the first 5 years (16.7%) and 15 in the later 5 years (83.3%).The case fatality rate was 0.61%(5/814) and the main causes of death were intestinal perforation,DIC and HUS.The outbreaks took place in all the year round except June and eight of the 12 administrative districts.Houses of detention and factories were high risk sports accunted for 66.6%.Consuming contaminated water and food were the main mode of transmission. no paratyphoid fever outbreak report in this decade.