<prompt> Virus which has more than one serotypes ?MeaslesMumpsRubellaInfluenza  <response>: 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. 