The infected person traveled on Jan. 28.
Measles infections are climbing in the U.S., and California counties are urging residents to get vaccinated.
Orange County has confirmed two cases of measles in the past week, one involving an international traveler. The infected individual arrived at Los Angeles International Airport (LAX) and visited Disneyland last month.
The Orange County Health Care Agency (HCA) said in a news release that the patient traveled to Orange County on Jan. 28. The individual visited Goofy’s Kitchen at the Disneyland Hotel and spent the day at Disneyland Park and Disney California Adventure Park. The agency stated, “People who were at these locations during the date and time listed above may be at risk of developing measles from 7 to 21 days after being exposed.”
The agency advised those who may have been exposed at these locations to check their immunity status and talk to their health care provider about vaccination. The statement added, “Watch for fever and/or an unexplained rash from 7 to 21 days after exposure. If symptoms develop, call your health care provider immediately for guidance.”
Another recent case in Orange County involved an unvaccinated toddler with no travel history outside the area. Dr. Anissa Davis, deputy county health officer at the HCA, emphasized that everyone is at risk, even if they have not traveled. “Because measles is highly contagious, it can spread quickly within communities, even among those who haven’t traveled. The best way to protect yourself and your loved ones is to get vaccinated before exposure occurs.”
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Meanwhile, Los Angeles County has reported three measles cases in the last week, all related to travel. The Los Angeles County Department of Public Health also encouraged vaccinations after the first case was reported. The Los Angeles County health officer stated, “As L.A. County residents begin to travel this summer and with measles cases increasing among those who have recently traveled, we remind everyone that the best way to protect yourself and your family from infection is with the highly effective measles vaccine.”
Disneyland Park welcomes about 65,000 visitors daily, with a capacity of up to 85,000. Disney California Adventure Park can host as many as 27,000 guests.
Measles Is Back
Measles was declared eliminated in the U.S. in 2000 but has resurged in recent years alongside declining immunization rates. By Jan. 29, 2026, the U.S. had confirmed 588 measles cases; 2025 was the worst year since 2000, with 2,267 cases and three deaths.
Measles is highly contagious, but serious illness or death is preventable. Children can receive two doses of the MMR (measles, mumps, and rubella) vaccine or the MMRV (measles, mumps, rubella, and varicella) vaccine. The MMR vaccine is 97% effective against measles when both doses have been given, and there is no evidence linking the vaccine to autism. The CDC notes, “Almost everyone who has not had the MMR vaccine will get sick if they are exposed to those viruses.”
In 2015, another California measles outbreak was traced to Disneyland. The CDC confirmed 125 cases linked to that outbreak, with 110 patients living in California.
Domestic and international travelers should consult their health care provider about vaccination—especially when traveling with children—to protect both themselves and those who cannot be vaccinated, such as immunocompromised individuals and infants.
Related: If You Were at This Airport Recently, You Could Have Measles