This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatitis Viruses, Subject name: Microbiology
[{'content': 'Virus causing Latent infection (or Latent period is shown by which virus) - \nSelect and explain. \nA. Rubella, B. HBV, C. Pertussis, D. Rota virus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., HBV [Ref: Harrison 18th/ep. 1438: 17th/e p. 1084)Latent infection is caused byo HBVo HCVo Rabies Viruso Measles Viruso HIVo HTLVo HPVo HSVo VZVo Some pox viruseso EBVo CMVo HHV-6. HHV-7, HHV-8(Human Herpes Virus)", 'role': 'assistant'}]