This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Average incubation period of typhoid is: 
Select and explain. 
A. 2-3 days, B. 5-8 days, C. 10-15 days, D. 15-30 days
C: 10-15 days
Answer: C: 10-15 days 
Explanation: Ans. (c) 10-15 daysRef: Harrison's 18th ed ch-15211.