The former industrial building at 2241 S. Halsted St. that has been converted into the city's largest shelter. (WTTW News)
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City health officials did not immediately identify whether the latest people to contract measles are children or adults, nor did they disclose their condition, as they have with all other cases of measles.

The former industrial building at 2241 S. Halsted St. that has been converted into the city's largest shelter. (WTTW News)
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Since the first confirmed case of measles was diagnosed in a shelter resident on Friday, approximately 900 residents have been vaccinated, officials said. 

The former industrial building at 2241 S. Halsted St. that has been converted into the city's largest shelter. (WTTW News)
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A team from the Centers for Disease Control and Prevention is on its way to Chicago to assist the Chicago Department of Public Health respond to the apparent measles outbreak, Chicago health officials said.

The former industrial building at 2241 S. Halsted St. that has been converted into the city's largest shelter. (WTTW News)
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The child diagnosed with measles “has recovered and is no longer infectious,” according to the Chicago Department of Public Health.

(WTTW News)

Health officials said they are working to identify and notify people who may have been exposed to measles, including at the facilities where the resident sought medical care.

(WTTW News)

It’s part of a nationwide increase in congenital infections, passed along to an infant during pregnancy. If undiagnosed, the baby can be born with a number of health issues, including cataracts, deafness and a low birth weight, or can even be stillborn.

(WTTW News)

Local health officials are working to notify people who may have been exposed to measles after a northwest Indiana resident sought medical care last week in Chicago while contagious with the infection.

Dr. Olusimbo “Simbo” Ige appears on “Chicago Tonight: Black Voices” on Jan. 17, 2024. (WTTW News)

The city of Chicago has a new public health commissioner filling this high-profile role after the ousting of Dr. Allison Arwady in August. Dr. Olusimbo “Simbo” Ige is the first Black woman to lead the Chicago Department of Public Health on a permanent basis.

Mayor Brandon Johnson picked Dr. Olusimbo “Simbo” Ige to lead the Chicago Department of Public Health. (Credit: City of Chicago)
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Dr. Olusimbo “Simbo” Ige will now be asked to deliver on Mayor Brandon Johnson’s vision of public health for Chicago — while coping with the continuing pandemic.

Community health worker Stefferina Woodrick leaving a flyer at a house on the 7800 block of South Pulaski Road in Ashburn on Oct. 31, 2023. (Eunice Alpasan / WTTW News)

Their mission was to pass out flyers with information about an upcoming COVID-19 and flu vaccination clinic at Richard J. Daley Community College on the Southwest Side.

A still image from a video taken of the demolition of the Crawford Coal Plant smokestack, April 11, 2020. (Alejandro Reyes / YouTube)

Dave Graham, who a watchdog report said should be fired for “willful bureaucratic negligence” in the 2020 incident that covered Little Village in dust, is now in charge of environmental inspections and enforcement.

(Nataliya Vaitkevich / Pexels)

About 66,900 Chicagoans, or 2.4% of the city population, have received the new vaccine since updated COVID-19 vaccines were recommended in mid-September, the Chicago Department of Public Health reports.

(WTTW News)

COVID-19 vaccines and flu shots will be available to everyone at no cost, regardless of insurance or immigration status.

(WTTW News)
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A combination of economic factors, health access and misinformation pushed childhood vaccination figures down to dangerous levels in recent years for many illnesses, including measles, experts said.

Dr. Allison Arwady appears on "Chicago Tonight" on Oct. 18, 2022. (WTTW News)
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During his campaign for mayor, Brandon Johnson promised to fire Chicago Department of Public Health Commissioner Dr. Allison Arwady, and Friday night, he did just that — setting off a wave of recriminations and outrage.

Dr. Allison Arwady appears on "Chicago Tonight" on March 20, 2023. (WTTW News)
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Dr. Allison Arwady was the public face of Chicago’s response throughout the COVID-19 pandemic. At the height of the pandemic, she hosted online question-and-answer sessions twice a week and frequently briefed the news media.