Covid vaccine study the acting CDC director blocked is published in an outside journal
The study found the 2025-26 Covid vaccine cut severe illness by about half, after Acting CDC Director Jay Bhattacharya blocked its planned release.
- A study on 2025-2026 COVID-19 vaccine effectiveness was published Tuesday in JAMA Network Open, after Acting Director Jay Bhattacharya blocked its release from the CDC's Morbidity and Mortality Weekly Report earlier this year.
- Bhattacharya rejected the paper from the CDC journal, arguing the "test-negative design" relied too heavily on assumptions and could produce results skewed by prior infections or patient behavior.
- The research utilized data from 85,725 emergency department visits and 26,073 hospitalizations, finding the vaccine about 55% effective against COVID-19-associated hospitalizations and reducing urgent care visits by 50%.
- Biostatistics expert Natalie Dean of Emory University defended the design as a standard, efficient method used for decades, noting it avoids establishing full population denominators.
- Bhattacharya said he is working to change the Morbidity and Mortality Weekly Report into a peer-reviewed journal, stating, "MMWR is not currently a peer-reviewed journal-- but we are working on changing that.
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The CDC Refused to Publish This COVID Vaccine Study; Scientists Just Found Another Way to Get It Out
A COVID vaccine study that had been previously blocked by the CDC was published recently in JAMA Network Open. The study in question sought to assess the effectiveness of the 2025-2026 COVID-19 vaccine against the said virus in adults without co-morbidities. Testing a pool of about 85,000 participants, the study found that adults who received the vaccine were 50% less likely to be hospitalized for COVID and 55% less likely to go to the ER for CO…
JAMA Journal Publishes COVID Vaccine Study Squelched by CDC Leader
(MedPage Today) -- The COVID vaccine study that was suppressed by the acting CDC director earlier this year has now been published in a JAMA journal. The case-control study showed that the estimated vaccine effectiveness (VE) rate during the 2025...
Blocked CDC study on COVID-19 vaccine effectiveness gets published
JAMA Open Network has published the study on COVID-19 vaccination effectiveness that the CDC blocked from being run in its Mortality and Morbidity Report. It shows the shot drastically reduced COVID-related hospitalizations and ER visits last winter.
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