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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 to  Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children. 


Data Last Updated # #, ####

Data is updated once a week. Data is not updated on weekends or holidays.

Illinois Mpox Cases


Illinois mpox (formerly known as monkeypox) cases include all probable and confirmed cases. The Centers for Disease Control and Prevention (CDC) numbers may not match due to differences in reporting timeframes.

All numbers displayed are provisional and subject to change.

Mpox Cases in Illinois

For more information regarding mpox, visit the CDC website or the World Health Organization.