Covid-19 was never just another cold. We knew it was going to stick around and keep changing to try to get the upper hand on our immune systems. But we’ve changed, too. Our B cells and T cells ...

People experiencing a Covid-19 rebound after treatment with the antiviral drug Paxlovid can be contagious, and researchers are warning that they may not know it because they might not have any ...

How will we know when the COVID-19 pandemic is over in the U.S.? Steven Phillips on how we have to think differently about risk today.

This summer in the United States, Covid-19 rates are reportedly particularly high in Arizona, California, Hawaii and Nevada. In these western states, the number of positive tests reached 15.6% on ...

The claim: Post implies COVID-19 vaccines are not effective because vaccinated are majority of deaths. The latest data shows people vaccinated for COVID-19 make up about 60% of those dying from ...

I f the COVID-19 pandemic has done one thing, it’s made us all more familiar with some of the important players in the immune system. Antibodies, B cells, and T cells are among the best known ...

COVID-19 was the eighth leading cause of death among children in recent months, according to a study published Monday.. In a yearlong period from August 2021 to July 2022, 821 children ages 0 to ...

During the current "silent" COVID-19 surge, you are at greater risk for getting infected with the SARS-CoV-2. Here's what to do if you test positive for COVID-19. Newsletters Games Share a News Tip.

Covid-19 is now ubiquitous – but hospitalisations seem to be on a downward trajectory. No one knows why. When virologists took their first peek at XEC, the Covid-19 variant which started to ...

With the acute phase of the Covid-19 pandemic fading even as the coronavirus persists and evolves, a new normal is taking shape around the world. “It still feels kind of incomplete,” said ...

5 Years Later: What Caused COVID-19? The World Health Organization called COVID-19 a pandemic for the first time five years ago today. The origin of COVID-19 is still unknown, though the leading ...

COVID-19 vaccine recommendations could be changing, according to the U.S. Food and Drug Administration. FDA leaders said on May 20 that clinical trials will be required to approve annual COVID-19 ...