Overview
- This week senators released January 2021 text messages from Dr. Anthony Fauci that some Republican officials used to reframe early, limited questions about vaccine data into claims of a large miscarriage risk.
- Several high-profile Republicans promoted an 82% miscarriage rate for women vaccinated in early pregnancy, a figure traced to a flawed recalculation of an April 2021 New England Journal of Medicine dataset.
- The miscalculation removed thousands of third‑trimester live births from the denominator while keeping the original count of 104 early pregnancy losses, producing an invalid 104/127 or roughly 82% result.
- NEJM authors updated their follow-up in September 2021 and large studies and systematic reviews since 2021 covering hundreds of thousands of pregnancies show no increased miscarriage risk from COVID‑19 vaccination, a conclusion reflected in current CDC guidance.
- The episode has prompted broad fact checks, platform corrections, and public rebuttals from medical societies, while political oversight and litigation over Fauci’s records continue and the renewed claims risk increasing vaccine hesitancy among pregnant people.