what type of pathogen is african sleeping sickness
African trypanosomiasis African trypanosomiasis, also known as sleeping sickness, is an insect-borne parasitic disease of humans and other animals.[1] It is caused by protozoa of the species Trypanosoma brucei.[1] There are two types that infect humans, Trypanosoma brucei gambiense (TbG) and Trypanosoma brucei rhodesiense (TbR).[1] TbG causes over 98% of reported cases.[1] Both are usually transmitted by the bite of an infected tsetse fly and are most common in rural areas.[1]