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: Microbiology
[{'content': 'Weil Felix test is useful in diagnosis of the following except- \nSelect and explain. \nA. Epidemic typhus, B. Scrub typhus, C. RMSF, D. Trench fever', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Trench fever . Weil Felix reaction is not diagnostic for Q fever, Rickettsial pox and Trench fever.", 'role': 'assistant'}]