All are true about poliovirus, except-: (A) Type I is responsible for most epidemics, (B) Very difficult to eliminate type I, (C) Type I responsible for vaccine paralytic poliomyelitis, (D) Type I most commonly associated with paralysis
Answer is C. Here are some important points about poliovirus strains* (Type I, II, III)
Most common cause of epidemics* → Type I
Most difficult to eradicate*→Type I (because vaccine response to it is not good)
Most common cause of vaccine Induced paralytic poliomyelitis*→ Type III (due to mutation)
Most commonly associated with paralysis* →Type I.