
Illinois Department of Public Health (IDPH) has issued a warning against potential exposure to measles at Chicago O’Hare International Airport.
In a news release on April 30th, the department identified two A case of measles has been confirmed In Cook County.
These are the first two cases in the county following the state’s first confirmed incident in adults in southern Illinois on April 23.
Measles outbreaks appear beyond us: see which states report cases
One case was identified as a suburban Cook County adult with an unknown vaccination status that sought medical care at a local hospital on April 28th.

Traveler at O’Hare International Airport in Chicago, Illinois on August 13th, 2024. The Illinois Department of Public Health warned about a potential exposure to measles in O’Hare this week. (Aldrago/Bloomberg via Getty Images)
The second case was identified in Chicago adults I traveled internationally to O’Hare Airport in April.
A patient who received a first dose of the MMR (measles-mumpsulvera) vaccine reported the onset of a rash on April 25th.
Both individuals have been isolated at home since their diagnosis.
As of May 1, there were a total of 935 confirmed cases of measles throughout the US.
The state health department has listed the following locations where public exposure is possible:
- Monday, April 21, 2025: Tasty Fitting, 3939 W. Irving Park Road.
- Tuesday, April 22nd, 2025: O’Hare Airport10am to 8pm, especially Terminal 1
- Wednesday, April 23, 2025: O’Hare Airport, 10am to 8pm, especially Terminal 1
- Friday, April 25th, 2025: Aldi: 7235 39th St, Lyons, IL 6053, 10am to 12:30pm
- Sunday, April 27, 2025: Shell: 3901 S. Harlem Avenue, Stickney, Illinois 60402, 10 am to 12:30pm
- Monday, April 28, 2025: Mobile: 2945 S. Harlem Avenue, Bellwin, Illinois 60402, 10:20am to 1pm
Click here to sign up for our health newsletter
IDPH urges all people over 12 months to receive two MMR vaccines before traveling internationally.

The state health department has listed O’Hare Airport as a possible location for exposure to measles on April 22 and April 23. (Vincent Alban/Bloomberg via Getty Images)
Individuals who may have been exposed should monitor and notify you of symptoms Medical workers; Medical institutions If they don’t know about previous vaccinations.
If symptoms develop, health officials say health care providers must be notified before they arrive at the facility to ensure “special arrangements” that prevent infection.
Is MMR vaccine safe for children? Dr. Nicole Saffier addresses concerns as measles cases rise
Measles is very contagious and easily spreads into the air, adding 90% of people close to infected people. Being infected If you have not been vaccinated against it.
As of May 1, there were a total of 935 confirmed cases of measles throughout the United States, according to CDC data.

“We encourage those who have not been vaccinated or have not been vaccinated to speak to their healthcare providers and take appropriate steps to keep them up to date with recommended shots,” the IDPH director said. (istock)
IDPH Director Dr. Sameer Vohra said in a statement in a press release that Illinois public health officials are working to prevent further spread. Completely vaccinated “Everyone remains the best and most effective way to protect themselves and those they love.”
Visit us for more health articles www.foxnews.com/health
“The MMR vaccine is safe and effective,” he said. “We encourage those who have not been vaccinated or have not been vaccinated to speak to their healthcare providers and take appropriate steps to keep them up to date with recommended shots.”
Interim Cook County Public Health Office COO Dr Kiran Joshi added that despite the effectiveness of the MMR vaccine, there is a revival of measles in the United States.
Click here to get the Fox News app
“The misinformation contributes to lower vaccination rates and provides fuel Recent outbreaksHe said.
“The MMR vaccine has been in use for over 50 years and is extremely effective and protects millions of lives.”