永城市疟疾疫情分析及防治效果评价

目的对2007年永城市疟疾疫情进行分析，并对不同的防治对策进行效果评价。方法收集、分析2006年和2007年永城市疟疾疫情报告数据，分别采用间接荧光抗体方法与传统媒介调查方法评价当地人群疟疾感染水平及媒介相关数据，进一步采取针对传染源与媒介防治的措施并对其进行效果评价。结果2007年永城市疟疾发病率为0.16‰，比2006年的0.52‰下降45.02％，人群疟疾抗体阳性率与GMRT显著高于2006年；中华按蚊是永城市唯一传疟媒介，叮人率裴桥乡为5.8867只／（人·夜），马桥乡为3.7500只／（人·夜），经产蚊比率为54.55％，人血指数为0.6667，媒介能量与基本繁殖率为0.689和1.4536；不同的休止期治疗效果差异无统计学意义（P〉0.05），而采用球形芽孢杆菌生物灭蚊蚴措施后，发病率较上年下降51.0％，与未实施生物灭蚊蚴措施的行政村相比，发病率差异有统计学意义（P〈0.05）。结论永城市疟疾仍处于流行之中，采取有针对性地防治对策可有效遏制疟疾疫情回升。

Malaria situation and evaluation on different malaria prevention and control measures in Yongcheng City

Objective To understand and analyze the malaria situation in Yongcheng City in 2007 and to evaluate different malaria prevention and control measures. Methods Data on the malaria epidemic situation were collected and analyzed. Malaria antibody levels and vector were evaluated by IFAT and vector surveys, respectively, and different malaria prevention and control measures were evaluated. Results The malaria incidence in 2007 was 0.16‰, which was a 45.02% decrease from that of 2006. The malaria antibody positive rate and GMRT in 2007 were greater than in 2006. A-nopheles sinensis was the only vector in Yoncheng City, and a vector survey showed that the man biting rate, multifarious rate and human blood index were 3.75/person, 54.55% and 0.6667, respectively. The vectorial capacity and basic reproductive rates were 0.689 and 1.4536, respectively. The malaria incidence between different malaria prevention and control measures were not statistically different. The malaria incidence in villages with biologic control measures in 2007 dropped 51.0% and was statistically significant （X^2=118.099, P〈0.05）. Conclusion The resurgence of malaria appeared in Yongcheng County, and malaria prevention and control measures suitable for the local situation will control the malaria situation effectively.