A note on trypanosomiasis of game from tsetse areas at Shinyanga and Ukerewe peninsula

Abstract

Wild animals shot in tsetse areas of Shinyanga (Glossina swynnertoni and G. pallidipes) and Ukerewe peninsula (C. swynnertoni) have been examined for trypanosomes. The results of examining a number of individuals from twenty-two animals are given in Table I. A total of 22·2 per cent. of all the animals examined showed trypanosomes in their bloods; of these 0·7 per cent. showed T. brucei, 20 per cent. T. congolense and 3·7 per cent. T. vivax. A few animals showed mixed infections. Of forty-five impala examined 20 per cent. were infected; of twenty-one giraffe examined 47·6 per cent. showed infection, and of nineteen wart-hog 15·8 per cent. were infected. Tables II and III give figures that suggest that the young animals show a higher per cent. infection than the adults, and that a higher per cent. infection is found during the rains. These figures, however, are insufficient for statistical treatment, and therefore must be taken with reserve.