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 conditions man is the mammalian reservoir? \nSelect and explain. \nA. Epidemic typhus, B. Endemic typhus, C. Scrub typhus, D. Rickettsial pox', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The causative agent and mammalian reservoirs of some diseases are given below: Epidemic typhus - Humans Endemic typhus - Rodents Scrub typhus - Rodents Rickettsialpox - Mice Note: Incase of trench fever caused by Rochalimaea quintana the mammalian reservoir is human. Ref: Park, Edition 21, Page - 274', 'role': 'assistant'}]