Short time efficiency of an antivectorial control by trapping on animal trypanosomiasis in South-Congo

Abstract

An antivectorial control by trapping was carried out in a village of South Congo, where trypanosomiasis due to Trypanosoma congolense is endemic, in order to evaluate its impact on the disease transmission in livestock. After 7 months of control, fly density was reduced by 97.4 % but intestinal infection rate of residual flies did not decrease significantly. The main host of G. p. palpalis was the pig. During the dry season, a transfer of usually non-peridomestic flies to the village was observed. Parasitological indexes (prevalence and parasitic load) significantly decreased in the animals at the end of the control. Simultaneously, the serological prevalence increased.