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

Public health authorities in Illinois have issued a detailed advisory after a confirmed case of measles was linked to Chicago’s O’Hare International Airport, one of the busiest air travel hubs in the United States. The announcement has drawn significant attention due to the combination of high passenger traffic and the highly contagious nature of the measles virus. Officials emphasized that even brief exposure in enclosed and crowded spaces such as airport terminals can carry a potential risk of transmission.