Microbiology Bacteria 7a06ae9f Incubation period of syphilis: A 1 hour - 5 hours B 24 hours - 48 hours C 1 day-10 days D 10 days - 90 days High-Yield Explanation Ans. is 'd' i.e., 10 days-90 daysRef: Ananthanarayan, 9th/e,p 370 and 372; Harrison, 18th/e, p. 381, 382 and 19th/e, p. 1132)IP - 9-90 days