NEW YORK -- Two encouraging studies suggest that people who recovered from COVID-19 had immune responses to the virus long after antibodies faded, even up to one year later. The findings may help put ...

Five years ago, COVID was all we could think about. Today, we’d rather forget about lockdowns, testing queues and social distancing. But the virus that sparked the pandemic, SARS-CoV-2, is still ...

In the United States, more than 72 million people, or 21% of the population, have received at least one dose of the Covid vaccine, according to data from the Centers for Disease Control. And President ...

Ian Haydon helped test Moderna's coronavirus vaccine last year. Now, he's helping test the tweaked version of that vaccine designed to fight a new, more contagious variant. "A year ago I tried the ...

We're still learning about COVID-19, but when it comes to how long the illness lasts, patients generally feel sick around the same amount of time. Most coronavirus patients have mild to moderate ...