Measles is caused by a virus. Measles is an extremely contagious, vaccine-preventable disease. The measles, mumps and rubella (MMR) vaccine is highly effective at preventing transmission of measles. One dose of MMR vaccine is approximately 93% effective at preventing measles. Two doses are approximately 97% effective.
In an effort to help preserve the well-being of the Ohio University community, the content of this site provides answers to frequently asked questions about measles and the University's response to it.