CALIFORNIA — Health officials in Sacramento have issued a warning about a potential measles outbreak after more than 100 children were likely exposed to the virus at a local supplemental education program. According to the Sacramento County health department, the source of transmission originated from an unvaccinated child who carried the virus during their infectious period while attending the program last week. Initial investigations show that up to 130 children may have come into contact with the measles virus. The involved educational facility has been temporarily closed for infection control purposes. Since late February 2026, at least 6 measles cases have been confirmed in the Sacramento and Placer County areas, as measles shows signs of spreading in several other localities. One of the cases was treated at Kaiser Permanente Roseville Medical Center on the morning of March 2, 2026, prompting the hospital to screen all patients and staff present at that time to determine exposure risks. Dr. Erica Pan, Director of the California Department of Public Health, stated that measles is among the group of highly infectious diseases that can lead to serious consequences. Measles can cause severe complications, including permanent brain damage and even death, especially in children. Health officials emphasized that the MMR vaccine (measles – mumps – rubella) provides long-term protection and plays a vital role in preventing the spread of the virus. Local health authorities are continuing to monitor individuals at risk of exposure and recommend that families check their children's vaccination status.

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