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Third Measles Case in Cook County Sparks Alert

10/2/2025

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Summary

Story summary

Crestwood, Illinois, confirms a measles case—the third in Cook County this year; vaccination remains the most effective prevention.
The infected adult's vaccination status is unknown and likely tied to a child who traveled through O'Hare Airport.
Exposure may have occurred at Aldi on September 24 from 5 p.m. to 7:30 p.m. People should seek medical advice if symptoms develop.

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Story summary

Crestwood, Illinois, confirms a measles case—the third in Cook County this year; vaccination remains the most effective prevention.
The infected adult's vaccination status is unknown and likely tied to a child who traveled through O'Hare Airport.
Exposure may have occurred at Aldi on September 24 from 5 p.m. to 7:30 p.m. People should seek medical advice if symptoms develop.