The percentage of Colorado kindergarteners who’d received their vaccinations declined in the previous two school years, but was still slightly higher than it had been in 2018. Now, that progress has been undone, and older children were actually slightly less likely to be vaccinated in fall 2022 than they were four years earlier.
About 88% of kindergarteners, 92% of all school-aged children and 96% of those in preschool or day care were up to date on their vaccines during the 2022-2023 school year, state health officials said. Kindergartners showed a 5.2% decrease in compliance, and all school-aged children a 2.2% decrease, over the 2021-2022 school year.