Objectives To investigate the sensitivity of Anopheles sinensis to the insecticides DDT and deltamethrin and to provide a basis for the control of An.sinensis in the future.Methods In Tongbai,Huaibin,and Yongcheng counties(cities),the filter paper contact method recommended by the WHO was used to test doses capable of killing adult Anopheles.The KT50 and mortality rate 24 h-postexposure were then determined using 4% DDT(1.428 g/m2) and 0.05% deltamethrin(0.0178 g/m2),and the resistance level was assessed ba...
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