Social & Preventive Medicine General Epidemiology e6c6bbd3 Incubation period of Influenza is:- A 1-3 days B 7-10 days C 10-14 days D 1-6 hours High-Yield Explanation 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)