Illinois - Mpox infections rising in Chicago

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With mpox infections rising in Chicago, health officials urge vaccination

by Jake Wittich
September 10, 2025

After a summer spike in mpox cases, public health officials are urging people to get vaccinated and take other precautions to keep the outbreak from growing.

Since Jan. 1, 71 Chicagoans have tested positive for mpox, with 59 (83%) of those cases happening since June 1, according to data maintained by the Chicago Department of Public Health (CDPH).

That same three-month period saw 46 cases in 2023 and 31 cases in 2024, according to CDPH.

Among the 59 cases in this year’s summer spike, there has been one hospitalization and no deaths, according to CDPH. Nearly half of those cases were among people who were unvaccinated.

“Many of these people have reported attending festivals like Pride events, and several have also reported anonymous sex,” said Stephanie Black, MD, a communicable disease medical director at CDPH. “What we’re wondering is if there are people who are perhaps new … to the community and have not been vaccinated.”
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https://windycitytimes.com/2025/09/10/with-mpox-infections-rising-in-chicago-health-officials-urge-vaccination/

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https://www.chicago.gov/city/en/depts/cdph/provdrs/infectious_disease/supp_info/mpox-home/mpox-dashboard.html

[Shiloh]

Source: https://news.wttw.com/2025/10/24/cit...fter-134-cases

City Health Department Expands Vaccination Efforts to Address Mpox Outbreak After 134 Cases Reported in Chicago Since June
Eunice Alpasan | October 24, 2025, 3:01 pm

The city is expanding vaccination and community engagement efforts to address a mpox outbreak in Chicago, which has seen more than 130 cases since June, according to the Chicago Department of Public Health this week.

There were 14 new cases in the city between Oct. 4 and 11, according to a CDPH spokesperson Friday. Chicago has seen a total of 134 mpox cases from June 1 through Oct. 11...

[Shiloh]

Source: https://www.cbsnews.com/chicago/news...eak-contained/

Recent Chicago mpox outbreak now contained, officials say
By Adam Harrington,
Desiree Evans
Updated on: November 26, 2025 / 4:25 PM CST / CBS Chicago

A recent outbreak of mpox, formerly known as monkeypox, in Chicago is now contained.

The Chicago Department of Public Health said only two cases of the virus have been reported since Tuesday, Nov. 18. New cases have averaged one or fewer a day for several weeks, and fewer than 10 a week for more than a month.

"We are pleased to report that our coordinated public-health response has effectively contained the outbreak, and the current risk to the public is low," said CDPH Commissioner Dr. Olusimbo "Simbo" said in a news release. "Our teams — disease investigators, epidemiologists, clinicians, outreach staff, and so many others — moved quickly and worked tirelessly to contain this outbreak and protect Chicagoans."

The outbreak started in August, mainly among men in the LGBTQ+ community. Between June 1 and Nov. 24, there were 166 new mpox cases in Chicago — an increase of 374%, the CDPH said.

The new cases were largely among people who have not been vaccinated, and 24% were among people living with HIV, the CDPH said. Eight people were hospitalized with mpox during the timeframe...