Incubation period of salmonella typhi -: (A) 2-5 days, (B) 3-21 days, (C) 14-25 days, (D) 0-60 days
Answer is B. ‘The incubation period for S. Typhi averages 10–14 days but ranges from 3 to 21 days, with the duration likely reflecting the inoculum size and the host’s health and immune status.’