This is the skin of a patient after 3 days of measles infection; treated at the New York - Presbyterian Hospital.

A resident in Fresno County is confirmed to be infected with measles amid a national outbreak of the highly contagious disease.

Fresno County health officials said Tuesday afternoon that this resident had potential exposures in Fresno County and Madera County.

Both health departments are working closely with health care providers and state agencies to investigate this case, identify potential exposures and implement preventive measures, according to a news release.

Measles is caused by a highly contagious virus that’s airborne and spreads easily when an infected person breathes, sneezes or coughs.

“At this time, the risk to the general public remains low, as most individuals are protected through routine childhood measles-mumps-rubella (MMR) vaccination, which is highly effective in preventing infection,” according to the Fresno County Department of Public Health (FCDPH) release. “However, measles is highly contagious, and FCDPH and [Madera County Department of Public Health] urge individuals who may have been exposed to monitor for symptoms and ensure they are up to date on their MMR vaccine.”

Health officials from both counties will hold a virtual call with local media about the measles case on Wednesday morning.

There have been five confirmed measles cases in California in 2025 as of Tuesday, according to the California Department of Public Health. Another case count update is expected on March 25.

Also on Tuesday, Los Angeles County public health officials confirmed their first case of measles in 2025 in a Los Angeles County resident who recently traveled through Los Angeles International Airport. Passengers assigned to specific seats may have been exposed on the March 5 arrival of China Airlines flight CAL8/CI8. They will be notified by health officials.

Los Angeles County health officials also released the following dates and times of possible exposure to the individual:

• Wednesday, March 5 between 7 p.m. to 10:40 p.m.: Tom Bradley International Terminal (Terminal B) at the Los Angeles International (LAX) Airport
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• Friday, March 7, between 11 a.m. to 5 p.m.: Cloud 9 Nail Salon, 5142 N. Lankershim Blvd., North Hollywood, CA 91601
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• Monday, March 10 between 8:15 a.m. to 10:30 a.m.: Superior Grocery Store, 10683 Valley Blvd., El Monte, CA 91731

• Health officials are dealing with ongoing measles outbreaks that have been especially prevalent in Texas and New Mexico.

Texas state health officials said Tuesday there were 25 new cases of measles since the end of last week, bringing Texas’ total to 223. Twenty-nine people in Texas are hospitalized.

New Mexico health officials announced three new cases Tuesday, bringing the state’s total to 33. The outbreak has spread from Lea County, which neighbors the West Texas communities at the epicenter of the outbreak, to include one case in Eddy County.

Oklahoma’s state health department reported two probable cases of measles Tuesday, saying they are “associated” with the West Texas and New Mexico outbreaks.

A school-age child died of measles in Texas last month, and New Mexico reported its first measles-related death in an adult last week.

Measles cases have been reported in Alaska, California, Florida, Georgia, Kentucky, Maryland, New Jersey, New York, Pennsylvania, Rhode Island and Vermont.

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The Associated Press contributed to this report.