The Transmission of Bancroftial Filariasis on Ukara Island, Tanganyika. II.—The Distribution of Bancroftial Microfilaraemia compared with the Distribution of Hut-haunting Mosquitos and their Breeding Places

Abstract

Ukara Island was selected for studies on the transmission of bancroftial filariasis because it provided a naturally circumscribed area with a substantial human population of which adequate numbers showed miorofilariae. It is a closely-knit and stable community. Filarial infections also occur in bird, lizard, dog and hyrax (rock-rabbit) on the island. The determination of the vectors of human filariasis thus depends on evidence of different kinds, the present paper considering only the general correlation of microfilarial incidence with the distribution of common domestic mosquitos in villages of the island.