All are true about poliovirus, except-
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.
Type I is responsible for most epidemics
Very difficult to eliminate type I
Type I responsible for vaccine paralytic poliomyelitis
Type I most commonly associated with paralysis