Vaccination rates among the country’s kindergartners have fallen once again, with coverage of the measles, mumps, and rubella (MMR) vaccination dropping from 92.7 percent in the 2023–2024 school year to 92.5 percent in 2024–2025. The percentage changes are small across the board, but they represent thousands of children and an ongoing downward trend that makes the country more vulnerable to outbreaks.
In the latest school year, an estimated 286,000 young children were not fully protected against measles. At the same time, the country has seen numerous explosive measles outbreaks, with case counts in 2025 already higher than any other year since the highly infectious disease was declared eliminated in
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