The Centers for Disease Control and Prevention says the passenger was evaluated shortly after the plane landed Thursday afternoon at Midway International Airport. The CDC says emergency medical personnel determined the woman's rash was not related to monkeypox, which had been suspected.
In its statement, the CDC says the woman was cleared but advised to seek medical care.
The incident occurred on Delta flight 3163, which landed at about 3:45 p.m. Passengers were kept aboard the plane for about three hours before being allowed off.