National survey results published yesterday in JAMA Network Open show that the number of people who say they are somewhat or very likely to seek COVID-19 vaccination fell from 74% to 56% from April to December, after press coverage of high effectiveness for two vaccines in phase 3 trials but before they were authorized for emergency use in the United States.

The study results, published as a research letter, were based on biweekly, online, probability-based tracking surveys of 8,167 community-dwelling adult US participants in the Understanding America Study, led by researchers at the University of California, Los Angeles. Each survey prompted responses from 5,259 to 6,139 participants, with completion rates of 75% to 97%.


Credit: CDC

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