The new memos from the Food and Drug Administration show how the agency’s vaccine chief, Dr. Vinay Prasad, personally ...

A key advisory group vows to base decisions on evidence, boost confidence in vaccines and protect health. Experts fear the opposite is happening.

There will be another ‘COVID’. Governments are planning for it, but how coordinated is that planning, and how resilient will ...

The episode revealed the enormous influence of a segment of the Republican Party that has come to distrust Big Tech.

The US Food and Drug Administration’s top vaccine official overrode agency experts in May to recommend against the broad use ...

Records show that a top U.S. regulator rejected the recommendations of agency experts and limited the use of Covid vaccines.

A growing number of Americans say they are showing potential symptoms of COVID-19 but still cannot get a test. ABC News' Mona ...