# Measles cases and exposures in the United States > Live situation record from CLSTR: https://clstr.news/situations/measles-cases-and-exposures-in-the-united-states > Updated: 2026-08-14T23:13:59.000Z. Sources: 5. Developments: 2. The Santa Barbara County Health Department confirmed its first measles case since 2019, noting the instance was linked to international travel. Health officials began investigating potential exposures to prevent local transmission. Following this, reports emerged of measles exposures at multiple medical facilities in the United States. In Danville, Geisinger Medical Center notified the public of a potential exposure involving a visitor in various departments, including the Emergency Department and Janet Weis Children’s Hospital, between August 12 and August 13, 2026. In Santa Barbara County, Sutter Health confirmed exposures connected to a patient visiting care sites between July 29 and August 6. This included reports of cancer patients being exposed at the Ridley-Tree Cancer Center. Public health authorities continue to emphasize the risks to unvaccinated and immunocompromised individuals. ## Timeline ### 2026-08-14: Measles exposures reported at medical facilities in Danville and Santa Barbara Health providers Geisinger and Sutter Health have reported measles exposures at medical facilities in Danville and Santa Barbara County, prompting public health warnings. 2 sources. https://clstr.news/cluster/measles-exposures-reported-at-medical-facilities-in-danville-and-santa-barbara ### 2026-08-11: Santa Barbara County confirms first measles case since 2019 Santa Barbara County health officials confirmed the first measles case in the area since 2019, linked to international travel. Officials are investigating exposures and urging residents to check MMR vaccination 3 sources. https://clstr.news/cluster/santa-barbara-county-confirms-first-measles-case-since-2019 --- Cite as: Measles cases and exposures in the United States. CLSTR, https://clstr.news/situations/measles-cases-and-exposures-in-the-united-states