<prompt> All are true about poliovirus, except-Type I is responsible for most epidemicsVery difficult to eliminate type IType I responsible for vaccine paralytic poliomyelitisType I most commonly associated with paralysis  <response>: Here are some important points about poliovirus strains Type I, II, IIIMost common cause of epidemics Type IMost difficult to eradicateType I because vaccine response to it is not goodMost common cause of vaccine Induced paralytic poliomyelitis Type III due to mutationMost commonly associated with paralysis Type I. 