| parasitology survey in northern sumatra, indonesia. | a parasitology survey was conducted in five villages in north sumatra, indonesia. a total of 3,207 blood smears, 2,066 stool specimens and 969 sera were examined. sixty (1.9%) inhabitants had malaria (plasmodium vivax 41, p. falciparum 19), and 20 had brugia malayi microfilaraemia. the most common intestinal helminths were trichuris trichiura (87%), ascaris lumbricoides (75%) and hookworm (58%). other helminths found in low numbers were enterobius vermicularis, strongyloides stercoralis, taenia ... | 1976 | 950682 |