Social & Preventive Medicine Incubation period for diptheria and salmonella is A 1-2 days and 20-40 days B 2-6 days and 7-21 days C 2-6 days and 10-14 days D 1-2 days and 10-14 days 💡 Explanation Incubation period for diptheria and salmonella is ✓ Correct Answer: C. 2-6 days and 10-14 days