New Jersey health officials say that a traveler with a confirmed case of the measles may have exposed travelers at Newark Liberty International Airport last month.

The New Jersey Department of Health says that an international traveler from Israel arrived at Terminal C from Tel Aviv on April 16 between 4 a.m. and 8 p.m. Travelers who were inside the terminal at this time may have been exposed.

Officials say that New Jersey residents who were on the sick person’s flight will be notified by their local health department.

Measles is a highly contagious disease that can easily be spread through the air when someone coughs or sneezes. Symptoms include rash, high fever, cough, runny nose and red, watery eyes. It can cause serious complications such as pneumonia and swelling of the brain. Symptoms of this particular case could show up as late as May 7.

Officials say that anyone who has not been vaccinated or has not had measles is at risk if they are exposed.

The alert comes just one day after health officials warned of possible exposure at two locations in Middlesex and Ocean counties. A New York City resident with measles exposed the public at the Sky Zone in South Plainfield and River 978 Banquet Hall in Lakewood on April 22 and 23.

The Centers for Disease Control and Prevention says that cases of the measles in the United States have reached their highest peak in 25 years – with over 667 cases reported this year.