Southern California recipients of a COVID-19 vaccine at a mass vaccination site in Disneyland’s parking lot in January. For strongest immunity, be sure to get both doses of the Pfizer or Moderna vaccine, says the CDC’s new head. She also…

LONDON — People who have been infected with Covid-19 are likely to have some form of immunity for at least five months, according to early results of a major new study in the U. K. Preliminary findings in Public Health…

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…

White House coronavirus adviser Dr. Scott Atlas, pictured in September, made numerous political blunders during his brief tenure, including a lengthy interview with Russian state media that ran just days before the U. S. presidential election. Evan Vucci/APhide captiontoggle captionEvan…

LONDON — Scientists at Oxford University say their experimental coronavirus vaccine has been shown in an early trial to prompt a protective immune response in hundreds of people who got the shot. British researchers first began testing the vaccine in…

Moderna’s Covid-19 vaccine led patients to produce antibodies that can neutralize the novel coronavirus that causes the disease, though it caused minor side effects in many patients, according to the first published data from an early-stage trial of the experimental…