不同媒介地区基本消灭疟疾后疟疾监测结果分析

RESULTS OF SURVEILLANCE AFTER BASIC ELIMINATION OF MALARIA IN REGIONS OF VARIED VECTORS

广西１９８５～１９８９年达到部颁基本消灭疟疾标准的２６个县（市）进行５年的病原学和血清学监测。结果表明，以微小按蚊、嗜人按蚊和中华按蚊为媒介的地区，达标后５年来发热病人血检平均原虫阳性率分别为０．０２０％、０．０４１％和０．００６％。在基本消灭疟疾达标后的第５年，微小按蚊地区年带虫发病率比达标当年年带虫发病率上升１．７倍；嗜人按蚊地区（第４年）上升１．９倍；中华按蚊地区下降６７．８６％。显示以中华按蚊为媒介的地区，考核达标后５年来疟疾疫情稳定，以微小按蚊和嗜人按蚊为媒介的地区，疫情波动性较大，局部地区出现疟疾回升。

This paper reported the results of surveillance in areas where malaria was basically eliminated from 1985 to 1989.The surveillance areas involved 26 counties (cities)where malaria vectors were An. minimus, An.anthropophagus and An. sinensis.A five-year(1985～1989) etiological and serological surveillance was conducted. The results showed that average parasite positive rates of febrile cases were 0. 020%,0. 041%,and 0. 006% respetively in 1989. In the area where An. minimus and An. anthropophagus were major vectors, the average API increased by 1.7 and 1. 9 times compared with that of 1984. Whereas in the area where An. sinensis was major vector, the API decreased by 67. 86%.It was concluded that the situation of malaria in area with An.sinensis as vector was stable.In the area where An.minimus and An. anthropopagus were vectors,the transmission of malaria was not interrupted effectivelly.