Topline The proportion of U.S. kindergarteners vaccinated against diseases like measles, mumps and tetanus decreased by about one percentage point during the 2020-2021 school year, as the Covid-19 pan...
Topline The proportion of U.S. kindergarteners vaccinated against diseases like measles, mumps and tetanus decreased by about one percentage point during the 2020-2021 school year, as the Covid-19 pan...