According to the New Jersey Department of Health, passengers traveling through Newark Liberty International Airport (EWR) in New Jersey this month may have been exposed to the measles virus.

NJ health officials are warning anyone who traveled through the airport between 6:30 am and 5:30 pm on January 2, 2018 that they may have been exposed to the virus and could develop symptoms as late as Jan 23.

The New Jersey Department of Health (DOH) said an Indiana University student with a confirmed case of measles was infectious when she arrived in terminal C on Jan 2 and departed for Indianapolis from a domestic terminal. She may have traveled to other areas of the airport, the DOH said.

Measles is one of the most contagious infectious diseases and can remain infectious in the air for up to 2 hours after a patient leaves, according to the CDC. Approximately 90% of susceptible people with close contact to a measles patient will develop the disease, which can cause serious complications, especially in patients aged younger than 5 years and older than 20 years.