A person who recently traveled through the Long Beach Airport did so while having the measles, the city’s Health Department announced Wednesday, April 10, putting anyone who was there at the same time at risk of contracting the infectious disease.

A person, whose gender was not released, had a case of the measles when traveling through the airport on two separate occasions nine days apart, the Health Department said. The person departed from Gate 11 on JetBlue flight 1136 to San Francisco at 6:40 a.m. March 30. The person then left again, from Gate 7, at 6:40 a.m. Sunday, April 7. The Health Department did not say whether the person took a return flight.

There isn’t an ongoing risk of measles at the airport, the department said. But anyone who was at the airport at the same time as the traveler — from 6 to 8 a.m. March 30 and April 7 — could be at risk of developing the measles.

The Centers for Disease Control and Prevention will contact passengers who were on the same flights as the person with measles if they may have been exposed during their flights, said Emily Holman, the Health Department’s Communicable Disease Control Program supervisor.

While the Long Beach Health Department is only responsible for its jurisdiction, San Francisco officials would have been alerted as well, Holman said.

The Long Beach Airport case comes after two confirmed cases of measles involving passengers at Los Angeles International Airport in February and March.

Measles is spread through coughing and sneezing. Symptoms include fever, runny nose, cough and red eyes. A rash typically spreads over the body in the 10 to 21 days following exposure.

Those who may have been exposed on March 30 and don’t show symptoms by April 20 will no longer be considered at risk. Those who were at the airport on April 9 and haven’t shown symptoms by April 28 should also be in the clear at that point.

The risk is greater for people with weakened immune systems or who haven’t been immunized against measles, officials said.

“Given the recent increase of measles cases both nationally and globally, the best way to protect against becoming infected is by getting immunized,” Long Beach City Health Officer Anissa Davis said. “Talk to your provider to make sure you are up to date with your measles vaccinations. People who may have been exposed to measles and have not been immunized may receive measles immunization to protect against becoming infected in the future.”