MINEOLA, NY (CBS 2) – Health officials on Long Island are warning residents about a possible measles exposure.

The Nassau County Health Department says someone exposed to the contagious disease was at Winthrop University Hospital sometime between last Friday and Monday. The hospital says the virus was confirmed in an adult traveler from overseas.

Officials say if you were in the emergency room or on the sixth floor of Hoag Pavilion and have not had a measles vaccine, you need to get one.

In order to prevent symptoms, health officials say vaccination within six days of exposure is essential.

Symptoms include fever, cough, runny nose and conjunctivitis. Serious complications of measles include pneumonia and inflammation of the brain.

Are you worried about getting the measles? Sound off below in our comments section:

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