The acting director of the Centers for Disease Control and Prevention has blocked the publication of research showing that COVID vaccines were highly effective at preventing hospitalizations for healthy adults last winter. The Washington Post reports the findings had cleared the CDC’s scientific review process and were scheduled for publication on March 19 in the agency’s flagship scientific journal, before acting Director Jay Bhattacharya personally intervened to withhold the report. In 2020, Bhattacharya was a main author of the Great Barrington Declaration, which argued against COVID lockdowns at a time when no vaccines were available.