Overview
- A person infectious with measles spent about 11 hours at Universal Studios Hollywood on July 26, possibly exposing anyone in the park between 10 a.m. and 9 p.m.
- Ventura County confirmed the case is linked to international travel and said the same individual visited other local sites between July 26 and Aug. 2 that are under investigation.
- Los Angeles County issued a public exposure warning on Thursday, Aug. 6 and told potentially exposed visitors to watch for measles signs for 7–21 days with Aug. 16 as the last monitoring date.
- Health officials are conducting contact tracing and advise pregnant people, infants under 12 months, immunocompromised people, and those unvaccinated to contact a health provider right away after possible exposure.
- The notice arrives as the U.S. records more than 2,300 measles cases in 2026, and officials stress that two doses of the MMR vaccine are about 97% effective at preventing infection.