Eight-case outbreak in Shasta County makes California measles surge — state urges vaccinations after Disneyland exposures
California reported 17 confirmed measles cases as of Feb. 9, 2026, including an eight-case cluster in Shasta County tied to a Jan. 30 index patient. State officials urge vaccination after exposures at Disneyland and other public sites amid a national surge.
Key takeaways
- Statewide total: 17 confirmed cases across multiple counties, including Shasta (8), Los Angeles, Orange, San Bernardino, Riverside and Napa — sources include California Department of Public Health and CBS Sacramento.
- Shasta cluster: All eight cases are linked through close contact to an index patient identified Jan. 30; newly identified patients were isolated before they became contagious (CBS Sacramento).
- Disneyland exposures: Two infectious visitors were at Disneyland on Jan. 22 and Jan. 28; employees and guests were notified (UNMC Health Security; CDPH CAHAN alert).
- Vaccine protection: Two doses of MMR provide about 97% protection; measles is highly contagious and can spread from four days before to four days after rash onset (CDPH).
Main article
Shasta outbreak: how it started and response
Shasta County public health officials say the eight-case cluster is connected through close contacts and traces back to a person identified as the index patient on Jan. 30. Investigators listed public exposure sites in Redding where exposures occurred Jan. 23–28, including:
- Ninja Coalition
- Highland Neighborhood Park
- Osaka Sushi
- Gym basketball game at the former CrossPointe Community Church
- Costco
- Churn Creek HealthCare clinic
Local officials praised community cooperation with contact tracing and isolation — newly identified patients were isolated before they became contagious, a key step to limit spread. (CBS Sacramento)
Disneyland exposures and statewide reach
Two people with measles visited Disneyland in Anaheim on Jan. 22 and Jan. 28 while infectious. Park employees and visitors who may have been exposed were notified. Public health agencies emphasize that crowded public places and travel frequently drive exposures. Sources include UNMC Health Security and the CDPH CAHAN alert.
State and national picture
The California Department of Public Health has issued alerts urging residents to check vaccination status, especially before international travel, and asking clinicians to report suspected cases immediately, use airborne precautions and isolate suspected patients. The recent rise in California mirrors a national surge driven largely by communities with low vaccination coverage (CDPH).
Nationally, the CDC reported 733 confirmed U.S. cases across 20 states as of Feb. 5, 2026, following more than 2,200 cases in 2025 — the highest numbers since measles elimination was declared in 2000. South Carolina reported a major outbreak with over 920 cases. Public health experts warn ongoing spread could jeopardize regional measles-free status.
Who is getting infected
Health officials say most confirmed cases nationally and in California are in people who are unvaccinated or whose vaccination status is unknown. In Shasta County, all eight patients were either unvaccinated or had unknown vaccination histories. The MMR vaccine — given in two doses — remains the best protection (CDPH).
California’s kindergarten MMR coverage remained above 95% for 2024–2025, which helps community protection, but pockets of under-vaccination, travel-linked cases and large gatherings can allow measles to re-emerge.
Investigative questions: gaps and next steps
Investigators are examining how the Shasta index case contracted measles and whether travel or contact with an out-of-state infected person played a role. Officials are reviewing local school and community vaccination records to identify possible clusters of low coverage. Contact tracing at each Redding exposure site continues (CBS Sacramento).
At the state level, CDPH is coordinating with local health departments to speed testing, isolation and notification. Healthcare providers were reminded to use airborne precautions and to report suspected measles immediately (CDPH CAHAN alert).
What measles looks like and how it spreads
Symptoms: Measles often begins with a high fever and the “three Cs”: cough, coryza (runny nose) and conjunctivitis (red eyes). A red rash usually appears a few days later. People can spread measles from about four days before rash onset to four days after. The disease can be serious, particularly for infants and immunocompromised people (CDPH).
Prevention: Two doses of the MMR vaccine are about 97% effective — public health officials stress that unvaccinated people who are exposed have a high chance of becoming infected.
Implications for Los Angeles, California
Economic impact: Los Angeles depends on tourism, film and live events. News of Disneyland exposures and nearby outbreaks may affect travel and attendance; businesses should prepare for increased questions and potential reduced turnout. Healthcare costs could rise with more emergency visits and hospitalizations among unvaccinated people (UNMC Health Security).
Political and social: School districts and public health agencies may face pressure to tighten vaccination verification and messaging. Clear, apolitical communication and easy vaccine access are key to maintaining community trust and cooperation for contact tracing and isolation.
Cultural relevance: As a travel hub, Los Angeles should remind residents and visitors to check vaccination status before international travel and large gatherings. Entertainment industry settings may review vaccine and safety protocols for high-risk situations (CDPH CAHAN alert).
Practical applications for residents
- Check vaccination records: Confirm MMR status for adults and children — two doses are recommended for full protection (CDPH).
- Watch for symptoms and isolate: If you develop fever, cough, runny nose, red eyes or a rash, call your health provider before visiting so staff can use airborne precautions.
- Use public health resources: Consult the California Department of Public Health and the CDC for vaccination clinic info and case counts.
Sources and further reading
- California Department of Public Health — Measles information and alerts
- CDPH CAHAN alert — Increase of measles in California
- CBS Sacramento — Shasta County measles outbreak
- UNMC Health Security — California reports largest measles outbreak in 5 years
- CDC — Measles data and research
(Reporting for Times Media Service)
