Vaccination rates among young children in Michigan declined significantly during the first year of President Donald Trump’s second term, according to a Reuters analysis of state data. The study highlights a nearly three-percentage-point drop in the completion of a key series of seven vaccines among toddlers—from January 2025 to January 2026—bringing the rate down to 66.5%. This marks one of the steepest declines in nearly two decades, outside of major disruptions like the COVID-19 pandemic and the 2008 financial crisis. Public health experts warn that the trend could increase vulnerability to preventable diseases and may reflect broader national patterns.
The decline has been linked by health officials and researchers to the influence of U.S. Health Secretary Robert F. Kennedy Jr., whose long-standing vaccine skepticism has gained prominence at the federal level. His messaging has contributed to growing hesitancy among certain groups, particularly white families, while intensified immigration enforcement has deterred many Hispanic families from accessing public health services. Michigan’s detailed monthly vaccination data provides an early indication of how federal rhetoric and policy changes may be affecting immunization behavior, even as officials stress that the state itself is not solely responsible for the downturn.
The drop in vaccination coverage comes amid a resurgence of measles and other infectious diseases across the United States, raising concerns about a reversal of decades-long public health progress. Experts warn that lower immunization rates not only endanger unvaccinated children but also pose risks to infants and immunocompromised individuals. While federal officials deny any direct link between national leadership and declining vaccination uptake, local health authorities in Michigan report increased skepticism among parents and growing challenges in maintaining immunization levels necessary for community protection.
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