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In alignment with the recent announcement by the World Health Organization and the concurrence of the U.S. Department of Health and Human Services, IDPH is now using the term “mpox” to refer to what has been known as monkeypox virus. This change is intended to enhance the response to mpox by using a term that does not conjure bias or stigma and to strengthen efforts to protect communities that are most impacted by the virus.

Beginning December 23, 2022, IDPH will move to weekly mpox data reporting.

Data Last Updated # #, #### at 2 p.m.

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

Illinois Mpox Cases


Illinois mpox 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.

Mpox Cases in Illinois

All numbers displayed are provisional and subject to change.

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