摘要
目的 探索河南省基本消灭疟疾地区疟疾暴发流行程度及原因。 方法 在信阳市二十里河村选择 5个居民组 ,运用寄生虫学与昆虫学方法进行调查。 结果 1999年 7、8两个月居民带虫发病率为 7.37% ,6月小学生原虫率和疟疾抗体阳性率分别为 2 .0 0 %和 8.40 % ,1998年居民疟史率为 16 .72 % ;仅捕获嗜人按蚊和中华按蚊 ,前者 7、8月份平均叮人率 4.82 ,后者为 6 .77;人血指数前者为 0 .785 7,后者为 0 .15 19;腺子孢子率前者为 0 .0 8% ,后者为 0 ;媒介能量前者为 5 .5 2 96 ,后者为 0 .892 4,前者是后者的 6 .2倍。 结论 嗜人按蚊为当地疟疾的主要传播媒介 ,该蚊的种群数量增加是疟疾暴发流行的主要因素。
Objective To find the cause of malaria outbreak in the area of the disease basically eliminated. Methods To use the methods of parasitology and entomology to investigate at 5 villages of the Yanghe County, Henan Province. Results In June to August 1999, the malaria incidence was 7.37%, the parasite rate and the positive rate(IFAT) of children was 2.0% and 8.40%, respectively. The rate of residents malaria history in 1998 was 16.72%. Anopheles anthropophagus and An.sinensis were caught in the area. The man-biting rate of An. anthropophagus and An. sinensis was 4.9388 and 6.7679, the human blood index was 0.7857 and 0.1519, the vectorial capacity was 5.5296 and 0.8924, respectively. Conclusion An. anthropophagus is the principal vector on malaria transmission in the area. It is the cause of malaria outbreak that the number of An. anthropophagus increase.
出处
《中国寄生虫病防治杂志》
CSCD
2001年第2期81-83,共3页
Chinese Journal of Parasitic Disease Control
基金
卫生部/WHO资助项目! (CHN/ MAL./ 0 0 1 )&&
