Summary (tl;dr)

A new measles case linked to the Disneyland Resort in California has been confirmed in early 2026, prompting public health warnings amidst a broader rise in measles infections across Southern California and the United States. This event echoes a significant 2014-2015 outbreak and raises concerns about the potential loss of the country's measles elimination status.

Essential Background

Measles is a highly contagious, airborne viral disease that can lead to serious complications such as pneumonia and brain swelling, and in rare cases, death. While the United States declared measles eliminated in 2000 due to widespread vaccination, outbreaks have recurred due to declining immunization rates. A notable measles outbreak began at the Disneyland Resort in December 2014, eventually spreading across seven U.S. states, Mexico, and Canada, infecting over 150 people. This 2014-2015 outbreak intensified an international discussion on vaccine hesitancy and led to California's Senate Bill 277, which eliminated personal belief exemptions for vaccines.

The Full Story

On January 31, 2026, Orange County health officials confirmed a measles case in an international traveler who visited multiple high-traffic areas within the Disneyland Resort and Los Angeles International Airport (LAX) on January 28, 2026, while infectious. The exposure windows included Goofy's Kitchen at the Disneyland Hotel, Disneyland Park, and Disney California Adventure Park. This recent incident marks the first measles case tied to Disneyland since the 2015 outbreak. This local event coincides with a broader surge in measles cases across Southern California and the entire U.S., with 2026 already reporting the highest number of cases in decades. Health officials have confirmed additional cases in Orange and Los Angeles counties, primarily involving residents who had traveled internationally, and have issued warnings for potential exposure locations.

Why It Matters

The re-emergence of measles at a major public attraction like Disneyland, coupled with rising case numbers nationwide, is highly significant. Health experts are concerned that the U.S. could lose its measles elimination status, which requires no continuous spread of the virus for over a year. Measles is extremely contagious, capable of lingering in the air for up to two hours, making crowded public spaces like theme parks and airports ideal for its rapid spread, especially among unvaccinated populations. The current trend is largely attributed to declining measles-mumps-rubella (MMR) vaccination rates among young children since the COVID-19 pandemic, a trend linked to increasing vaccine hesitancy. Health officials are urgently advising individuals to verify their immunity status and consider vaccination, particularly those who may have been exposed, to prevent further transmission and serious illness.

Geographic Location

• Disneyland Resort, Anaheim, Orange County, California, United States (international traveler with measles visited multiple park locations)
• Goofy's Kitchen, Disneyland Hotel, Anaheim, Orange County, California, United States (exposure site)
• Disneyland Park, Anaheim, Orange County, California, United States (exposure site)
• Disney California Adventure Park, Anaheim, Orange County, California, United States (exposure site)
• Los Angeles International Airport (LAX), Los Angeles, Los Angeles County, California, United States (international traveler with measles arrived)
• Sherman Oaks, Los Angeles County, California, United States (L.A. County patient visited a restaurant while infectious)
• Orange County, California, United States (confirmation of measles cases)
• Los Angeles County, California, United States (confirmation of measles cases)