Nine Disney-linked cases spread outside California , home to 42 Disney-linked cases . Comment: Measles is a respiratory disease caused by a virus and spread through the air , according to the Centers for Disease Control and Prevention . Calif. official urges some people to stay away from Disneyland during measles outbreak .
Nine Disney-linked cases spread outside California , home to 42 Disney-linked cases . Comment: Calif. official urges some people to stay away from Disneyland during measles outbreak .