The Long Beach Health Department on Wednesday was warning of a possible risk of measles exposure from a person who traveled through Long Beach Airport to San Francisco on two separate occasions while infected.

The person departed from LGB from Gate 11 on March 30 at 6:40 a.m. on JetBlue flight 1136, and again departed from LGB from Gate 7 on April 7 at 6:40 a.m. on the same flight 1136. People present at the airport on either of those days between 6 and 8 a.m. may be at risk of developing measles, the health department said in a statement.

Passengers present on those flights will be contacted separately.

“Measles can spread through coughing and sneezing,” according to the health department. “Symptoms often begin with fever, runny nose, cough, and red eyes, followed by a rash that spreads all over the body. The rash will usually appear 10 to 21 days after a person is exposed.”

People who may have been exposed on March 30 and have not exhibited symptoms by April 20 will no longer be considered at risk. Individuals who may have been exposed on April 7 and have not exhibited symptoms by April 28 will no longer be considered at risk.

The department said there is currently no ongoing risk related to measles at the airport.

“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 in a statement. “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.”

Anyone who thinks they may have measles should contact their provider’s office or emergency department by phone. People are advised not to show up at a medical facility without prior notification, as this could increase potential exposure to the public.

For more information on measles, please visit www.longbeach.gov/measles.