Sleeping Sickness

This article is about the African trypanosomiasis. For the encephalitis epidemic of 1917-1928, see encephalitis lethargica. Sleeping sickness or African trypanosomiasis is a parasitic disease in people and in animals. Caused by protozoa of genus Trypanosoma and transmitted by the tsetse fly, the disease is endemic in certain regions of Sub-Saharan Africa, covering about 36 countries and 60 million people. It is estimated that 300,000 - 500,000 people are infected, and about 40,000 die e ...