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目的 为了制定针对性的疟疾防治对策。 方法 根据江苏省疟疾流行因素 ,将流行区分为 6个监测组 ,即中华按蚊和嗜人按蚊共存地区 (1组 )、嗜人按蚊分布毗邻地区 (2组 )、中华按蚊单一媒介地区 (3组 )、基本消灭疟疾地区 (4组 )、流动人口较集中地区 (5组 )、献血员疟疾较多地区 (6组 )。于 1997～ 1999年分别在上述地区 ,对疟疾进行了分类监测。 结果 1组疟疾年发病率、API、发热病人血检阳性率和 IFA阳性率均显著高于其它组 ,发病数占全省病例总数的74.38% ,嗜人按蚊占按蚊总数的 3.73% ;2组年发病率、发热病人血检阳性率、IFA阳性率明显高于 3～ 6组 ;3组和 4组年发病率、发热病人血检阳性率、IFA阳性率已降至较低水平 ;5组流动人口发热病人血检阳性率和 IFA阳性率显著高于当地居民 ;6组疟疾疫情已得到有效控制。 结论 1组地区是江苏省疟防重点地区 ,2组地区需加强疟疾监测 ,3～ 4组地区可进一步简化现有抗疟措施 ,5组地区重点开展流动人口监测 ,6组地区可列入当地常规监测
Objective To develop targeted malaria control strategies. Methods Based on the prevalence of malaria in Jiangsu Province, the epidemic was divided into six monitoring groups: Anopheles sinensis and Anopheles anthropophagus (group 1), Anopheles anthropophagus adjacent to the region (group 2), Anopheles sinensis single medium (3 groups), malaria elimination area (4 groups), floating population concentrated area (5 groups) and blood donors malaria area (6 groups). Malaria was classified and monitored in the above areas from 1997 to 1999 respectively. Results The annual incidence of malaria, the positive rate of API, the positive rate of IFA in febrile patients and the positive rate of IFA in group 1 were significantly higher than those in other groups, accounting for 74.38% of the total cases and 3.73% of the total Anopheles mosquitoes. The annual incidence rate of 2 groups and the positive rate of IFA in febrile patients were significantly higher than those in groups 3 to 6. The annual incidence rate, the positive rate of IFA and the positive rate of IFA in 3 and 4 groups decreased to a lower level. The blood test positive rate and IFA positive rate of fever patients in 5 floating population were significantly higher than those of local residents; 6 groups of malaria epidemic have been effectively controlled. Conclusions In the first group, malaria prevention is the most important in Jiangsu Province. Two groups of malaria surveillance should be strengthened. In the third and fourth groups, the existing anti-malarial measures should be simplified. The monitoring of floating population should be carried out in the five groups. Routine monitoring