关键词: 疟疾, 嗜人按蚊, 分布范围

Abstract: Objective To explore the relationship of malaria transmission with Anopheles anthropophagus and its change characteristics after malaria control measures.Methods To understand the relation between An.anthropophagus distributing range,species density and malaria transmission through collecting and analyzing the data from field investigation in 12 villages of 5 townships for their distributed features in Yunnan province since 1980s.Two sentinel sites have been chosen to carry out species density monitoring after malaria control measure.Results An.anthropophagus distributed in 35 counties in Yunnan but only in 8 counties were found as vector of transmission malaria and accounted for 8% population of Yunnan.Average density for per hours was 0.2 and have decreased 99.5% 99.3% compared with before malaria control measure.The density of nets was 0.08 per net.Biting rate of half night was 0.13 per person per night.Only five of the 8 counties which An.anthropophagus can transmit malaria found malaria continually after malaria control measure.The malaria incidence also decreased from 10.32 per ten thousand people in 1980 to 1.01 per ten thousand people in 1997 in the 8 counties.Conclusion The malaria control measure of DDT residue spraying and insecticide treating nets are suit for vector control in these area.