Objective: To identify an imported malaria case by epidemiological survey data of the continuous residence in the place where the first fever occurred contrasted to the incubation period of a specific malaria parasite. Methods: The entire population of Dak Nhau village of Bu Dang district at Binh Phuoc province was followed-up both respectively (for the malaria cases in 2013), and prospectively (for the malaria cases in 2014).