Microbiology Infectivity period of chicken pox A 2 days before & 5 days after appearance of rash B 1 week before & 1 week after onset of rash C Till the fever subsides D 10 days after onset of rash 💡 Explanation Infectivity period of chicken pox ✓ Correct Answer: B. 1 week before & 1 week after onset of rash