Incubation period of Influenza is:-: (A) 1-3 days, (B) 7-10 days, (C) 10-14 days, (D) 1-6 hours
Answer is A. Incubation period :- Time interval b/w entry of organism till appearance of first sign / symptom. I.P of influenza is 1-3 days.( 18-72 hours)