This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
[{'content': 'Sleeping sickness is transmitted by: \nSelect and explain. \nA. Tsetse fly, B. House fly, C. Sand fly, D. Simulium fly', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Tse tse flyForms of Human African TrypanosomiasisHuman African trypanosomiasis takes 2 forms, depending on the parasite involved:Trypanosoma brucei gambiense is found in 24 countries in west and central Africa. This form currently accounts for 97% of reported cases of sleeping sickness and causes a chronic infection.Trypanosoma brucei rhodesiense is found in 13 countries in eastern and southern Africa. Nowadays, this form represents under 3% of reported cases and causes an acute infection. Only Uganda presents both forms of the disease, but in separate zones.", 'role': 'assistant'}]