Social & Preventive Medicine Period of infectivity for Measles is:- A 2 days before to 5 days after appearance of rash B 1 day before to 1 day after appearance of rash C 4 days before to 5 days after appearance of rash D Lifelong 💡 Explanation Period of infectivity for Measles is:- ✓ Correct Answer: C. 4 days before to 5 days after appearance of rash