Release of CDC study concluding Covid vaccines dramatically cut hospitalizations blocked by RFK. Jr.

Credit: KFF Health News
Credit: KFF Health News

The acting director of the Centers for Disease Control and Prevention has delayed publication of a CDC report [scheduled for March 19, 2026] showing the covid-19 vaccine cut the likelihood of emergency department visits and hospitalizations for healthy adults last winter by about half, according to two scientists familiar with the decision. The scientists spoke on the condition of anonymity for fear of retaliation.

The move has raised concerns among current and former officials that information about the vaccine’s benefits are being downplayed because they conflict with the views of Health Secretary Robert F. Kennedy Jr., who has been an outspoken critic of the shots.

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Kennedy, the founder of a prominent anti-vaccine group, has been an outspoken critic of covid shots, once referring to them as the “deadliest vaccine ever made.” Last year, Kennedy posted a video on X directing the CDC to no longer recommend the covid vaccine for healthy pregnant women and children, an unprecedented move that bypassed the CDC’s long-established scientific process that relies on its federal vaccine advisory panel to make recommendations to the agency. Kennedy’s action drew widespread criticism from medical and public health experts.

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