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': 'A man presents with fever and childs 2 weeks after a louse bite. There was maculo-papular rash on the trunk which spread peripherally. the cause of this infection can be - \nSelect and explain. \nA. Scrub typhus, B. Endemic typhus, C. Rickettsial pox, D. Epidemic typhus', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Epidemic typhus o Amongst the given options, only epidemic typhus is caused by louse bite. o For clinical presentation of different Rickettsial diseases, See previous explanations", 'role': 'assistant'}]