Vaccine associated paralytic poliomyelitis is suspected if AFP develops within how many days of receipt of OPV?: (A) 30, (B) 45, (C) 60, (D) 90
Answer is B. Vaccine associated paralytic poliomyelitis: Acute onset flaccid paralysis within 4 to 30 days of receipt of OPV or within 45 to 75 days of contact with a vaccine recipient and neurological deficits remaining 60 days after onset or death. Ref: Park 21st edition, page 105.