Malaria quartan (1) is a rare case to be found on daily consultations in Jayapura. In the locality where this survey was done, the houses has been sprayed with DDT twice a year for more than ten years. Malaria vector in this area is An. punctulatus group and the dominant species is An. farauti. This vector:, breed/ in brackish and rain water along the slopes and rivers dividing the town. Jayapura lies on the northern shore of Irian Jaya. Indonesia. Ardipura is situated on the slopes of hills on the periphery of Jayapura town. Houses are surrounded by forests connected with small and unpaved roads. Most of the people are gardeners. An elementary school is located in the center of this hilly area. The pupils of this school were the subjects of this survey which was started on 25 September 1978 for 28 days. On inquiries, information as collected that school age children in this locality attended school and none of them were instructed to do otherwise by their parents.