This is not a Christmas gift anyone would want.

Fliers who passed through Newark Airport on Christmas Eve may have been exposed to measles: A traveler who arrived from Brussels that day was confirmed to have the contagious disease, New Jersey’s Department of Health warned Friday.

Anyone who was in the airport Dec. 24 from noon to 4 p.m. may have been exposed and could develop symptoms as late as Jan. 14, officials said.

New Jersey residents who were on the contagious person’s flights will be notified by their local health department, according to the statement.

People who suspect they may have been exposed should call a health-care provider before showing up at a doctor’s office or emergency room, officials advised. That way, special arrangements can be made for evaluation while also protecting other patients and medical staff.

This case is unrelated to an ongoing measles outbreak in the state, which includes 30 confirmed cases in Ocean County and three cases in one Passaic County household, the state’s health commissioner, Dr. Shereef Elnahal, said in a statement.

Measles symptoms include rash, high fever, cough, runny nose and red, watery eyes, officials said. Complications include pneumonia and encephalitis, or swelling of the brain.

Pregnant women affected by measles can potentially miscarry, have a premature birth or deliver a low-birth-weight baby.

“Anyone who has not been vaccinated or has not had measles is at risk if they are exposed,” Dr. Christina Tan, state epidemiologist, said in the statement. “We urge everyone to check to make sure they and their family members are up-to-date on measles/mumps/rubella (MMR) vaccine and all other age-appropriate immunizations.”