 Insecticide and melecine wey no dey work again Wia dis foto come from, Getty Images Wetin we call dis foto, Dem suppose check blood samples for malaria regularly to monitor wen di merecine no dey work again WHO don warn say Anopheles mosquitoes dey show sign say insecticides and merecine no dey work on dem again, and dis dey slow down di fight against malaria. 