A Trial on Controlling Anopheles anthropophagus Against Malaria in Sichuan Province

Objective To detect a strategy of controlling malaria vector in Anopheles anthropophagus areas in Sichuan province. Methods Treating mosquito nets with deltamethrin or treating mosquito nets with deltamethrin and spraying animal pens with DDT together. Results Anopheles density in mosquito nets and cattle sheds,indoor biting rate,and half nights outdoor human attraction in nets in two treated villages were lower than those in control village. Blood test by microscope in patients with fever showed that the malaria cases were dropped from 8.57% to 0% in the village treating nets with deltamethrin and spraying animal pens with DDT together,while the cases were declined only from 4.13% to 0.67% in the village only treating nets with deltamethrin. Conclusion Both methods can quickly control malaria vectors and reduce malaria cases,while the effects of treating nets with deltamethrin combined spraying animal pens with DDT together are better than of treating nets with deltamethrin only.