For most of this year, the JN.1 variant of the coronavirus accounted for an overwhelming majority of Covid cases. But now, an offshoot variant called KP.2 is taking off. The variant, which made up just one percent of cases in the United States in mid-March, now makes up over a quarter. KP.2 belongs to a…
Even leading experts in vaccine science have run up against disbelief and ambivalence. Dr. Gregory Poland, 68, editor in chief of the journal Vaccine, said that a loud whooshing sound in his ears had accompanied every moment since his first shot, but that his entreaties to colleagues at the Centers for Disease Control and Prevention…
Soon after their arrival in late December 2020, the Covid-19 vaccines turned the pandemic around and opened a path back to normalcy. They prevented about 14.4 million deaths worldwide, according to one estimate. In a small percentage of people, they also produced side effects. Over the course of more than a year, The New York…
A well-known Chinese scientist who defied a Chinese government gag order by being the first to disclose the genome of the Covid virus to a global database four years ago held a rare protest this week in Shanghai after being locked out of his lab. The scientist, Zhang Yongzhen, had run a laboratory in Shanghai…
The Food and Drug Administration has greenlit a new medicine to protect some of the people most at riskfrom Covid. The agency granted emergency use authorization for Pemgarda, a monoclonal antibody infusion, in immunocompromised people ages 12 and older. The drug is intended to protect against Covid for people who are not likely to mount…
When the World Health Organization declared Covid-19 a global pandemic in March 2020, nearly everything about the novel coronavirus was an open question: How was it spreading so quickly? How sick would it make people? Would a single bout buy you protection from future cases? In the four years since, scientists have unraveled some of…
Two years ago, German doctors stumbled across news reports of a man being investigated for receiving scores of coronavirus vaccines with no medical explanation. Then followed a flurry of speculation about what he had been up to. As it turned out, prosecutors were looking into whether he had been receiving so many extra doses as…
Americans with Covid or other respiratory infections need not isolate for five days before returning to work or school, the Centers for Disease Control and Prevention said on Friday, a striking sign of changing attitudes toward the coronavirus. People with respiratory illnesses may resume daily activities if they have been fever-free for at least 24…
We’re four years into the pandemic, and by this point, most Americans have had Covid at least once. But when the virus comes for us (again), it can still feel just as alarming as your first bout. Here’s a guide to what Covid looks like now and how to treat it. Symptoms The most common…
We’re four years into the pandemic, and by this point, most Americans have had Covid at least once. But when the virus comes for us (again), it can still feel just as alarming as your first bout. Here’s a guide to what Covid looks like now and how to treat it. Symptoms The most common…
