Antelope and their relation to trypanosomiasis

Abstract

The flies on the Chagwe Lake shore are still capable of infecting monkeys with Trypanosoma gambiense . Four years and a-half have now elapsed since the Chagwe coast line was officially declared free of population, all villages destroyed "within a zone of two miles bordering the lake, and their inhabitants removed inland. In spite of precautions, however, there is very little doubt that the islanders continued secretly to visit the mainland until they also were removed in 1909, and all the island villages destroyed. Since September, 1909, therefore, there have been no natives in the fly area except the recalcitrant few, who, at the risk of imprisonment, may from time to time return to their old haunts on the mainland or the islands. Instances of this have indeed occasionally occurred up to the time of writing. Apart from the captures made by the Government patrol, I have on several occasions had to report signs of recent native occupation within the prohibited area seen in the course of excursions from Mpumu.