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Ventura County public health warns measles risk rising; county has no confirmed cases
Summary
Public health officials told the Board of Supervisors the county has no confirmed measles cases but vaccine coverage among kindergarteners lags behind the state, and federal funding uncertainty could shrink local vaccination outreach.
Ventura County Public Health briefed the Board of Supervisors on April 29 about an increase in measles cases in the U.S. and the county’s readiness to respond. Health Officer Dr. Aldine Castell said Ventura County had not reported a confirmed measles case since 2017 and that, as of April 25, the United States had recorded 884 cases for 2025 — many connected to travel.
Dr. Castell told the board the disease is highly contagious and that a single case could lead to many exposures in areas of low immunization. "Two doses of MMR are about 97% effective in preventing measles," she said, and urged vaccination where appropriate. She said 97% of recent cases nationally occurred in people who were not immunized or whose vaccination status was…
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