Dr. Anthony Fauci on Sunday defended raising the bar on his projections about herd immunity for COVID-19 — insisting that he’s only been offering “estimates” all along.“We have to realize that we have to be humble and realize what we…

Countries around the world have closed their doors on the UK following the discovery of a new coronavirus variant. The variant—known as “B.1.1.7”—appears to have spread rapidly through London and the south-east of England. Although it appears to be more…

A new study has found evidence of a “robust cellular memory” against Covid-19 that lasts for at least six months after infection, reinvigorating the question of whether natural infection with the virus could grant lasting immunity after a study last…

President Trump on Friday was taken to the Walter Reed National Military Medical Center in Bethesda, Maryland, after contracting COVID-19. Trump is expected to remain at the hospital “for the next few days” in a special presidential suite of rooms,…

Protection from any potential coronavirus vaccine might be short-lived and could require a booster to prolong protection, White House health advisor Dr. Anthony Fauci said Monday. As several companies move closer to the finish line of a potential vaccine for…