Measles, also called rubeola, is a highly contagious respiratory disease caused by a virus. Symptoms of the disease include fever, runny nose, cough and a rash all over the body. Measles virus normally grows in the cells that line the back of the throat and lungs. Measles spreads through the air by breathing, coughing or sneezing. According to CDC, any child who is exposed to the disease and is not immune will probably get it.
About 30 percent of measles cases lead to serious complications including pneumonia, ear infections, diarrhea, brain inflammation, hospitalization and even death.