Incubation period of Diptheria is -: (A) 2 - 6 days, (B) 2 - 6 hrs, (C) 2 - 6 weeks, (D) 2 - 6 months
Answer is A. . Ans. is `a' i.e., 2 - 6 days - The incubation period of diphtheria is commonly 3-4 days.