This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'In which of the following infections mosquito is the main vector? \nSelect and explain. \nA. Hepatitis - A, B. Cholera, C. Yellow fever, D. Leprosy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The yellow fever virus is transmitted by the bite of female mosquitoes (the yellow fever mosquito, Aedes aegypti. After transmission of the virus from a mosquito the viruses replicate in the lymph nodes and infect dendritic cells in paicular. Hepatitis-A and Cholera are transmitted through feco-oral route. Leprosy is transmitted by fomites.', 'role': 'assistant'}]