The Health Department says a person with measles traveled through the airport on July 4.
The potential exposure was tracked to terminals A, B and C between 7:30 a.m. and 11:15 a.m.
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Officials are warning anyone who may have been exposed to check their vaccination status, and watch for symptoms.
Early measles symptoms include fever, runny nose, cough and red watery eyes, followed by a rash.
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