King County MMRV Vaccination Rate Remained at 15 Percent From 2015 to 2025

A study conducted in King County, Washington, reveals that 15% of children aged 12 to 47 months received the combined measles, mumps, rubella, and varicella (MMRV) vaccine as their initial dose between 2015 and 2025. This rate of administration for the combined vaccine remained consistent throughout the ten-year period, according to the research findings.

The data tracks vaccination patterns for children in the region, specifically focusing on how healthcare providers and families choose between the combined MMRV shot and separate vaccine formulations. The study highlights that while the majority of children received measles-containing and varicella-containing vaccines through other methods, the 15% utilization rate for the combined MMRV dose showed no significant fluctuations over the decade. Researchers compiled these figures to document long-term trends in immunization delivery within the King County pediatric population.

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Source: GO-AI-ne1

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Date: July 10, 2026

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GOAI