October 03, 2025

Vax Facts Friday 10.3.25

boy covering cough

Q: People can become infected with measles virus from respiratory droplets that remain in the air for up to ____ ____ after an infected person has left the area. 

A. 30 minutes 
B. 1 hour 
C. 2 hours 
D. 6 hours

 

 

 

 

 

 

 

 

 

 

 

 

The correct answer is C. 2 hours 
For example, if someone who has not had measles enters an elevator or other small space up to two hours after an infected person has left, they can still become infected with measles.

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