2004-2007年宜宾市钩端螺旋体病流行病学分析

Epidemiology of Leptospirosis in Yibin,2004-2007

目的分析宜宾市钩端螺旋体(钩体)病疫情动态和流行规律,为有效预防控制钩体病的发生与流行提供科学依据。方法对2004-2007年宜宾市钩体病疫情资料进行描述性流行病学分析。结果4年共发病299例,无死亡病例,年平均发病率为1.51/10万;发病主要集中在8～9月,占发病总数的91.30%,男女性别比为2.69∶1;病例主要集中在10～35岁年龄组,占报告病例总数的76.59%;农民、学生是发病的主要人群,分别占发病总数的59.87%和36.79%。结论宜宾市钩体病发病高峰在8、9月份,青壮年农民及学生为主要发病对象。

Objective To analyses the epidemic trend and pattern of leptospirosis in YIbin, provide the scientific evidence for the prevention and control of leptospirosis. Methods Descriptive epidemiological analysis was conducted on the data of leptospirosis epidemic in Yibin 2004 - 2007. Results During this 4 years, 299 cases of leptospirosis occurred, but no deaths occurred, the annual average incidence rate was 1.51/105 ; the incidence of leptospirosis had obviously seasonality with the occurrence mainly in August and September（273 cases） , the cases in this 2 months accounted for 91.30% of the total cases, men to women ratio was 2.69： 1 ; most cases occurred in 10-35 age group, accounting for 76.59 of the total cases. Farmers, students were the major population involved, which accounted for 59.87% and 36.79% of the total cases respectively. Conclusion The incidence of leptospirosis had obviously seasonality with the occurrence mainly in August and September in Ylbin. Most cases occurred in Farmers and students.