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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Virus which has more than one serotypes ?
assistant
The correct answer is  Ans. is 'd' i.e., Influenza Influenza virus is an enveloped RNA virus containing 8 pieces (8 segments) of single stranded RNA. There are three viral subtypes : (i) Type A (causes all pandemics and most epidemics); (ii) Type B; and (iii) Type C (not circulating currently).