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The CDC has blocked the publication of a report showing COVID-19 vaccine effectiveness.
A significant report demonstrating that COVID-19 vaccines reduced emergency room visits and hospitalizations by approximately 50% among healthy adults has been withheld from publication. The Department of Health and Human Services confirmed the manuscript was not accepted for the CDC’s Morbidity and Mortality Weekly Report, citing concerns over the methodological approach used to estimate effectiveness. While officials maintain that reports undergo rigorous review to ensure scientific integrity, the decision has drawn scrutiny given the report’s findings on the tangible health benefits of vaccination.
This dispute coincides with major shifts in health policy under Health Secretary Robert F. Kennedy Jr., whose panel recently moved to scrap broad vaccine recommendations in favor of individualized medical consultations. Although a federal judge has temporarily blocked that change, the environment for vaccine research remains increasingly strained. Recently, Pfizer and BioNTech were forced to halt a large-scale trial for updated shots due to low enrollment, reflecting declining public demand and a changing regulatory landscape for future immunization efforts.
source: Santhosh, C. (2026, April 22). US CDC will not publish report showing COVID vaccine effectiveness. Reuters.

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