摘要
目的分析重庆市2002年霍乱疫情流行特点及规律,为制定防制措施提供依据。方法对确诊的霍乱患者及其密切接触者进行个案调查,采肛拭和(或)大便取样,进行霍乱弧菌培养分离和鉴定。结果全市发生霍乱疫情23起,确诊病例173例,死亡5例,带菌者101人。霍乱感染率、发病率、死亡率和病死率分别为0.884/10万、0.558/10万、0.016/10万、2.89%。病例相对集中在渝西地区,6～8月为发病高峰,以农民发病为主。食物因素引起的病例数显著高于其它传播因素(U=6.62,P<0.01)。优势流行菌型为埃尔托霍乱弧菌稻叶1d菌型,同时首次出现霍乱弧菌O139群。结论重庆市霍乱传播方式以食源性传播为主,流行株发生改变,应制定针对性强的综合防制措施,控制和减少疫情的发生和流行。
Objective To analyze the epidemiologieal characteristics of cholera in Chongqing in 2002 and provide scientific basis for setting preventive and control measures. Methods All cholera cases and the people they had contacted were investigated. Rectal swabs were collected for isolation and identification of V. cholerae. Results 173 eases including 5 eases of death and 101 carriers of V. cholerae were reported. The infeetion rate, incidence rate, mortality rate and fatality rate were 0.884/100000, 0.558/100000, 0.016/100000 and 2.89%, respectively. The majority of the cases were occurred in the western part of Chongqing. There was a peak from June to August and most of the eases were farmers. The number of eases transmitted by contaminated food was signifieandy more than by other means （U=6.62,P〈0.01）. The cholera outbreak was mainly due to Vibrio cholerae 01 El Tor, serotype Inaba ld type and O139 serogroup was isolated for the first time. Conclusion The serotype of epidemic bacteria strain has changed. The disease was mainly transmitted by contaminated food. Effective measures should be taken to control and prevent the epidemic of this disease.
出处
《热带医学杂志》
CAS
2006年第5期582-584,共3页
Journal of Tropical Medicine
