Via NBC News (emphasis added):

"For more than a half-century, vaccines have had remarkable success eradicating the most lethal and devastating childhood infectious diseases, saving millions of lives and ushering in a relative golden era of global public health*.

But now, America is dangerously backsliding.

The vast majority of counties across the United States are experiencing declining rates of childhood vaccination and have been for years, according to an NBC News data investigation, the most comprehensive analysis of vaccinations and school exemptions to date…

This six-month investigation, done in collaboration with Stanford University, gathered massive amounts of data from state governments and archives of public records reaching back years or decades. The data focused on core childhood vaccines that, together, regard someone to be "up to date" on immunizations; these are the measles, mumps, rubella, polio, whooping cough and diphtheria shots…

Since 2019, 77% of counties and jurisdictions in the U.S. have reported notable declines in childhood vaccination rates. The declines span from less than 1 percentage point to more than 40 percentage points.

Vaccine exemptions for school children are rising nationwide: As many as 53% of counties and jurisdictions saw exemption rates more than double from their first year of collecting data to the most recent."

*A "golden era of global public health"!