To assess the actual detection of cases in a region of malaria endemic area, assessing the effectiveness, actual infection status and warning of disease situation, HCMC Institute of Malaria - Parasitology - Insect conducted a survey at Bu Gia Map district hospital, Commune medical stations and communities of Dak O, Phu Nghia and Bu Gia Map communes, Bu Gia Map district, Binh Phuoc province.