Human African trypanosomiasis, also known as sleeping sickness, is a vector-borne parasitic disease. Why is the sickness caused by trypanasomes called African sleeping sickness? TbG causes over 98% of reported cases. It is caused by the Trypanosoma brucei, a parasitic protozoan carried by the tsetse fly. The more severe form of the illness is caused by rhodesiense . Log in. check_circle Expert Answer. Encephalitis lethargica is an atypical form of encephalitis.Also known as "sleeping sickness" or "sleepy sickness" (distinct from tsetse fly-transmitted sleeping sickness), it was first described in 1917 by the neurologist Constantin von Economo and the pathologist Jean-René Cruchet.The disease attacks the brain, leaving some victims in a statue-like condition, speechless and motionless. There are two strains of the African Sleeping Sickness. Step 1. African trypanosomiasis, also known as African sleeping sickness or simply sleeping sickness, is an insect-borne parasitic infection of humans and other animals. Sleeping sickness is caused by two organisms: T. brucei rhodesiense T. brucei gambiense . Flies called tsetse flies carry the infection. Join now. There are three type... Want to see the full answer? The African Sleeping Sickness is a prevalent disease in sub-Saharan Africa. It is caused by the species Trypanosoma brucei. More than 98% of the accounted cases are caused by this strain. Why is trypanosomiasis called sleeping sickness? Without the organism these organism live, grow and multiply. It is a slower developing chronic form of the disease caused by T. brucei ambiance. Join now. Biology. These organisms often cause disease in humans and other animals. Humans are infected by two types, Trypanosoma brucei gambiense (TbG) and Trypanosoma brucei rhodesiense (TbR). The parasites are the organism that lives in another organism called the host. Click here to get an answer to your question ️ Why is the sickness caused by trypanasomes called African sleeping sickness? See Solution. 6 points Kotrys197 Asked 02.17.2015. Check out a sample Q&A here. This can affect the brain and causes mental deterioration, coma, and death. Log in. 1. Call your doctor if your child has a fever and is sluggish when waking up. The infection spreads through the blood. Sleeping Sickness Meaning. 1. West African sleeping sickness - This sleeping sickness is also called Gambian sleeping sickness. It is caused by infection with protozoan parasites belonging to the genus Trypanosoma.They are transmitted to humans by tsetse fly (Glossina genus) bites which have acquired their infection from human beings or from animals harbouring human pathogenic parasites. If an infected fly bites you, painful, red swelling occurs at the site of the bite. 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