ABSTRACT
Flies in the genus Glossina are called tsetse flies, which are vectors of several protozoans of people and animals in parts of Africa. The main disease associated with tsetse flies is human African trypanosomiasis (HAT), caused by subspecies of the protozoan Trypanosoma brucei. HAT is also known as sleeping sickness, while a related severe disease of cattle is called Nagana. Other than the possibility for sleeping sickness transmission, bites by tsetse flies are generally only of minor consequence. However, some individuals may become sensitized to the saliva, leading to welts. In the last few decades, there have been intensive efforts to control tsetse flies with insecticides and traps, which have yielded considerable success.
