This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rickettsial Diseases, Subject name: Social & Preventive Medicine
[{'content': 'Louse transmits - \nSelect and explain. \nA. Epidemic typhus, B. Endemic typhus, C. Murine typhus, D. Rickettsial pox', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Epidemic typhus Rickettsial diseasesDiseaseAgentInsect vectorMammalian reservoir1. Typhus groupa) Epidemic typhusb) Murine typhus (Endemic typhus)c) Scrub typhusR. prowazekiiR. typhiR. tsutsugamushiLouseFleaMiteHumansRodentsRodents2. Spotted fever groupa) Indian tick typhusb) Rocky mountain spotted feverc) Rickettsial poxR.conoritR.rickettsiiR. akariTickTickMiteRodents, dogsRodents, dogsMice3. Othersa) Q feverb) Trench feverC. burnetiiRocholimacaQuintanaNilLouseCattle, sheep, goats.Humans", 'role': 'assistant'}]