Vaccine associated paralytic polio is due to: (A) Polio virus type 1, (B) Polio virus type 2, (C) Polio virus type 3, (D) None of the above
Answer is C. VAPP - Vaccine associated paralytic polio is due to polio virus type 3
VDPV - Vaccine derived poliovirus is due to poliovirus type 2.