This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Incubation period of vaccine associated paralytic poliomyelitis is 
Select and explain. 
A. 1-2 hours., B. 1-3 days, C. 7-10 days, D. 4-30 days
D: 4-30 days
Answer: D: 4-30 days 
Explanation: Vaccine derived paralytic poliomyelitis (VAPP) : Develop paralytic polio after 4-30 days of administration of OPV Poliomyelitis among contacts of OPV : Develop within 7-60 days after exposure to recent OPV - recepient Ref: Human vital pathogens by Liu 1st edition Pgno : 79