With new testing requirements, it’s not even clear how new Covid or flu shots can be made available this fall.

As for safety, experts interviewed for this story said they are extremely confident in the systems set up to monitor vaccine ...

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.

Fewer than half of Americans trust the government to respond to disease outbreaks , act independently, or ensure the 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.