Measles is Highly Contagious
Measles is highly contagious and spreads through the air when an infected person coughs or sneezes.
It is so contagious that if one person has it, 9 out of 10 people of all ages around him or her will also become infected if they are not protected.
[Illustration showing an infected person infecting 9 out of 10 people if not protected]
[Logo] HHS/CDC
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