The antiviral pill that President Biden began taking after testing positive for the coronavirus has been shown to protect people at high risk of advancing to more serious cases of Covid-19. Researchers, though, are still working to answer key questions about the drug, including how effective it is in vaccinatedContinue Reading

But on the fourth day, he said, he was “surprised and disappointed” to see that he had tested positive again, and he suffered a recurrence of symptoms, he said, that were worse than before, including a low fever, achiness, a runny nose and a “mild cough.” He called his doctorContinue Reading

The BA.2 subvariant — an even more contagious version of Omicron — has already caused Covid-19 cases to rise across much of Europe. In the U.S., caseloads have held steady over the past week, ending two months of sharp declines, and many experts expect increases soon. Today’s newsletter looks atContinue Reading

South Korea has given emergency-use approval of Pfizer’s oral treatment for Covid-19, the first pill approved in the nation to treat symptoms of the coronavirus. Kim Gang-lip, the minister of food and drug safety, said at a news conference on Monday that the treatment, Paxlovid, would “diversify the types ofContinue Reading

Three separate teams of scientists on two continents have found that Omicron infections more often result in mild illness than earlier variants of the coronavirus, offering hope that the current surge may not be quite as catastrophic as feared despite skyrocketing caseloads. The researchers examined Omicron’s course through populations inContinue Reading

Three separate teams of scientists on two continents have found that Omicron infections more often result in mild illness than earlier variants of the coronavirus, offering hope that the current surge may not be quite as catastrophic as feared despite skyrocketing caseloads. The researchers examined Omicron’s course through populations inContinue Reading