COOK COUNTY, Ill. – The Chicago Department of Health and Cook County Department of Public Health confirmed two measles cases in Cook County, Illinois.
The health departments shared the news today, saying that one case surrounds an adult who is a resident in Cook County.
According to health officials, the vaccination status of the individual is unknown, but they were transported to a hospital.
The second case surrounds an adult from Chicago who traveled internationally at O’Hare Airport in April. Officials said that the individual from Chicago—who is now isolating in their house—previously received an MMR vaccine dosage.
Both health organizations encourage those who plan to travel internationally to receive two doses of MMR before they leave the country.
- The departments say these locations are points of possible exposure:
- Monday 4/21/2025: Chicago Public Library—Independence Branch, 4024 N. Elston Ave.
- Monday 4/21/2025: Fittingly Delicious, 3939 W. Irving Park Rd.
- Tuesday 04/22/2025: O’Hare Airport, 10am–8pm, especially Terminal 1
- Wednesday 04/23/2025: O’Hare Airport, 10am–8pm, especially Terminal 1
- Friday 04/25/2025: Aldi: 7235 39th St, Lyons, IL 6053, 10 a.m.-12:30 p.m.
- Sunday 04/27/2025 Shell: 3901 S. Harlem Ave., Stickney, IL 60402, 10 a.m.-12:30 p.m.
- Monday 04/28/2025 Mobil: 2945 S. Harlem Ave, Berwyn, IL 60402, 10:20 a.m.-1 p.m.
Potential symptoms for the measles include a fever, cough, runny nose, watery eyes and sore throat.
Those who are experiencing any form of those conditions are urged to contact their local health department if they become symptomatic.