ArticleInternational journal of public health2025
Politics in Public Health: Growing Partisan Divides in COVID-19 Vaccine Attitudes and Uptake Post-2021 Presidential Inauguration.
Article in International journal of public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Objectives: To investigate whether the 2021 U.S. presidential inauguration contributed to a widening of partisan divides in COVID-19 vaccine attitudes and uptake. Methods: We leverage the presidential inauguration as a natural experiment and analyze data from the Household Pulse Survey and CDC vaccination records. Using a difference-in-differences framework with continuous treatment, we examine how the transition differentially affected state-level vaccine refusal rates and county-level vaccination rates, based on varying levels of partisanship as measured by the Trump-Biden vote gap. Results: Following Biden's inauguration, vaccine refusal declined more in pro-Biden states. Distrust in government and vaccines accounted for approximately 80% of the interstate variation. County-level analysis revealed that for every 1 percentage point increase in Trump's vote share over Biden's, counties experienced an additional 0.515%-2.674% decline in vaccination rates among adults aged 65+. These effects were more pronounced in politically loyal and high-turnout counties. Conclusion: The presidential transition appears to have widened partisan divides regrading COVID-19 vaccines. These findings highlight the need for depoliticized health messaging and bipartisan strategies to mitigate the influence of partisanship on public health.
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