Jay Bhattacharya, the acting director of the CDC, has reportedly blocked the publication of a study on COVID-19 vaccine effectiveness due to its methodology. The study, which used the test-negative design, indicated that the season's vaccines were about half as effective at preventing hospitalizations in healthy adults. Bhattacharya criticized the study's design as "crap" and "logistically ridiculous," though the test-negative design has been a standard method for estimating vaccine effectiveness for two decades. AI
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RANK_REASON Article discusses a controversy surrounding a public health official's critique of a study's methodology, rather than a new release or core research finding.
