The Centers for Disease Control and Prevention warns that measles is a highly contagious respiratory disease. It spreads through the air through coughing and sneezing. Measles starts with a fever, runny nose, cough, red eyes and sore throat, and is followed by a rash that spreads all over the body.
Measles can be serious, especially for children younger than 5 years old. It can lead to pneumonia, encephalitis (swelling of the brain) and death. Learn more about measles: