【摘要】 目的研究浙江省某沿海城市一起伤寒暴发疫情的特征和原因。方法应用描述性流行病学和分析性流行病学相结合的研究方法,采用Epi-Info 2002软件进行数据统计分析。结果经过现场流行病学调查显示,这是一起经水传播的伤寒点源暴发疫情。此次伤寒暴发病例共58例,主要是外来民工,集中在下马周边地区。经病例对照研究单因素分析显示,此次伤寒的暴发与下马菜场(χ2=9.84,P<0.05)、井水使用方式(χ2=25.85,P<0.05)、吃熟食(χ2=9.18,P<0.05,OR=4.13)和在外就餐(χ2=13.97,P<0.05,OR=10.88)具有统计学联系,经非条件多因素Logistic回归分析显示井水用来洗瓜果蔬菜(OR=5.7,95%CI=2.2~14.6)及在外就餐(OR=8.2,95%CI=1.5~44.3)是此次疫情的主要危险因素。结论此次伤寒暴发主要是由下马菜场井水使用不当和外来人口不良饮食习惯引起的,通过现场流行病学调查和有效的控制措施,伤寒疫情得到有效控制。更多还原

【Abstract】 Objective To study attack rate of an outbreak caused by typhoid,and to identify its epidemiological causation and characteristics.Methods Descriptive analysis and case-control study were applied,using the Epi-Info 2002 software.Results This was a water-borne typhoid fever outbreak.A total of 58 typhoid cases were diagnosed.The patients were mainly migrant workers in Xiama District.Univariate analysis revealed that shopping in Xiama market(χ2=9.84,P<0.05),using patterns of well water(χ2=25.85,P<0.05),eating cooked food(χ2=9.18,P<0.05,OR=4.13)and outside eating(χ2=13.97,P<0.05,OR=10.88)were statistically correlated with the typhoid outbreak.In addition,using patterns of well water(OR=5.7,95% CI=2.2-14.6)and outside eating(OR=8.2,95% CI=1.5-44.3)were the main risk factors of this outbreak by multivariate Logistic regression analysis.Conclusion The outbreak was mainly caused by inappropriate use of well water in Xiama market and unhealthy eating habits.The epidemic was effectively controlled by target countermeasures.更多还原