Major US airport placed on alert after a passenger was reported to have a highly contagious illness

The advisory is part of a broader effort to prevent further spread and to quickly identify anyone who may have been exposed during the relevant time period. According to health officials, the confirmed case involved an individual who spent an extended period inside Terminal 1 at O’Hare International Airport during April 22 and April 23.

m. on those days, creating a wide timeframe during which many travelers, airport employees, and visitors could have been in the same environment. Because airports are high-density transit areas with constant movement of people, tracing all possible contacts within such a setting presents a significant challenge.

Authorities have stated that they are working to identify and notify individuals who may have been present in the same terminal during that period.