According to Newsweek, the outbreak has spread across 21 states, including New York.

The Centers for Disease Control and Prevention is monitoring an outbreak of measles.

According to Newsweek, the outbreak has spread across 21 states, including New York.

Some 107 people were reported to have contracted the viral infection.

You're likely not at risk if you were born before 1957 or received two doses of the MMR vaccine.

Symptoms include a runny nose, cough, slight fever, bluish white spots on the inside of your mouth, and a rash that usually begins on the face and spreads downward and outward, reaching the hands and feet.

Symptoms usually appear 10 to 12 days after exposure.