Health officials have issued a public advisory following a confirmed measles case linked to travel through O’Hare International Airport. Authorities say individuals who were present in the affected terminal during the specified timeframe may have been exposed and should review official guidance.

The person involved has since tested positive for Measles and is currently isolating at home. Public health teams are conducting contact tracing to identify and notify anyone who may have been in close proximity during the exposure window.

Officials also noted a second measles case in the same region. Investigations are ongoing to determine whether the two cases are connected. Measles spreads through respiratory droplets when an infected person coughs or sneezes, making crowded environments like airports a potential point of concern.

Travelers who believe they may have been exposed are encouraged to monitor for symptoms—such as fever, cough, and rash—and check their vaccination status. Health authorities emphasize that vaccination remains the most effective way to prevent infection and limit the spread within communities.