Measles cases are on the rise globally and here in Illinois the number is increasing as well. Vaccines are 97% effective in preventing this highly contagious disease. To learn more about this infection and get information on vaccination, go tohttps://dph.illinois.gov/topics-services/diseases-and-conditions/diseases-a-z-list/measles.html. Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children.