Measles vaccination rates drop after COVID-19 pandemic in counties across the US

Childhood vaccination rates against measles fell in the years after the COVID-19 pandemic in nearly 80% of the more than 2,000 U.S. counties with available data — including in states that are battling outbreaks this year.

A Johns Hopkins University study, published in JAMA this week , illustrates where more vulnerable communities are located. The results mirror trends established at state and national levels : Routine childhood vaccination rates are dropping.