The measles are a highly contagious and acute viral disease caused by the measles virusLook for a rash at the hairline, and small, typically white spots in the cheek area inside the mouth, to determine if a child has the measles. They may also have a fever, cough, runny nose, and red, watery eyes. Because measles viruses are spread by the airborne route, infected children should not be cared for in any child care area for at least 4 days.

Measles is a vaccine-preventable infection. Immunize according to current schedule—when a child is 12 to 15 months of age and with a second dose at 4 to 6 years of age.

https://www.cdc.gov/measles/index.html