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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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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