Placebo testing has been part of the process since the 1940s. It’s unclear what additional measures would achieve — but it may slow development.

The head of the FDA reiterated that the agency is applying a more skeptical approach to this year’s round of COVID-19 vaccine boosters.

Dr. Marty Makary, chief of the FDA, has expressed doubts about the agency approving the COVID-19 vaccine for winter, stating ...

For years, U.S. vaccine experts have issued a universal recommendation for Covid vaccines. That could change soon.

The plans amount to an extraordinary flex of Robert F. Kennedy Jr.’s power as health secretary to make decisions ordinarily ...

The original Covid vaccines, from Pfizer and Moderna ... more onerous to test by bringing up these sort of false safety ...

A landmark study by scientists at the University of Oxford, has unveiled crucial insights into the way that COVID-19 vaccines mitigate severe illness in those who have been vaccinated.

An FDA committee will soon make recommendations about this fall’s Covid-19 vaccines while Novavax still awaits full FDA ...

The mRNA Covid vaccines were designed so that this ... more onerous to test by bringing up these sort of false safety concerns or false efficacy concerns,” Offit said. Dr. Sean O’Leary ...