New Centers for Disease Control and Prevention (CDC) guidelines for fully vaccinated people in light of the delta variant do not include a social distancing recommendation for most people, as cities ...

Changing people’s behavior until a vaccine could be developed prevented roughly 800,000 COVID-19 deaths in the U.S., far more than many scientists predicted was possible, according to new CU Boulder ...

Add Yahoo as a preferred source to see more of our stories on Google. Graeme Sloan/Sipa USA/Newscom In closed-door congressional testimony, former chief White House medical adviser Anthony Fauci said ...