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

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

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

A new combination vaccine could simplify protection against two major respiratory illnesses for older adults, according to a ...

The original Covid vaccines, from Pfizer and Moderna ... more onerous to test by bringing up these sort of false safety concerns or false efficacy concerns,” Offit said. Dr. Sean O’Leary, chair of the ...

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.

Prasad has long criticized the FDA for granting emergency use authorization for COVID ... to efficacy and safety. "Without trials, it is only a matter of time before the FDA approves a vaccine ...

Symptomatic people can spread the infection to others from about 48 hours before you develop symptoms to about ten days after ...

Outbreaks of COVID-19 ... previous strains—has raised concerns across the world, highlighting the urgent need for an effective, safe, and multivalent vaccine. LC16m8 is an attenuated vaccinia ...

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 ...