CDC Leadership Questions Test-Negative Design Validity in Internal Seminar
CDC leadership has elevated methodological critiques of the test-negative design during an internal seminar, coinciding with suppressed staff research and altered ACIP priorities. This reflects deeper institutional dynamics undermining established vaccine monitoring tools and public confidence. Evidence from prior validations supports TND utility but underscores the value of additional prospective studies.
Next steps require independent replication of TND estimates using prospective cohorts with linked vaccination records to quantify any residual confounding before broader methodological shifts.
Bhattacharya: Blocked CDC COVID VE study will receive publication approval within 90 days or external criticism of agency methods will increase markedly.
Sources (3)
- [1]Primary Source(https://www.statnews.com/2026/07/02/measuring-vaccine-effectiveness-test-negative-design-cdc/)
- [2]Supporting Source(https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(23)00456-7/fulltext)
- [3]Supporting Source(https://www.nejm.org/doi/full/10.1056/NEJMoa2401234)