By Yolo County Health Officer Constance Caldwell, M.D.
January 29, 2015
There has been a lot in the news about a recent outbreak of measles linked to a Disney amusement park in Orange County, with now over 70 cases confirmed in California and several in other states as well. What is measles and who is at risk? Who exactly needs to be vaccinated?
Measles is a very contagious disease caused by a virus. It begins with fever, followed by cough, runny nose, sore throat and pink eyes, and then a whole body rash. When someone with measles coughs or sneezes, the droplets are spread in the air and stay very infectious for up to 2 hours. People are contagious from 4 days before they develop rash to 4 days after the rash starts.