Long COVID represents the constellation of post-acute and long-term health effects caused by SARS-CoV-2 infection; it is a complex, multisystem disorder that can affect nearly every organ system and ...

Long Covid patients suffer from chronic symptoms such as fatigue or shortness of breath. As researchers have discovered, this is to some extent due to a part of our immune system called the complement ...

Following on from the COVID-19 pandemic is another worldwide public health challenge that is referred to variously as long COVID, post-COVID syndrome or post-acute sequelae of SARS-CoV-2 infection ...

As we age, the immune system gradually declines and becomes less effective at responding to infections and vaccines.

Then-President Joe Biden declared the covid-19 public health emergency over in April 2023, but the pandemic's impact on health care systems can still be seen. Then-Gov. Asa Hutchinson declared a ...

Nothing about long Covid adds up. All of this is very strange. Stranger still are patients’ stories of astonishing recoveries ...

The study was originally meant to be published in a CDC weekly report in March.

Advanced age and some health conditions can raise the risk of serious illness from COVID-19.

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, ...

In the US, COVID-19 has killed more than 1.1 million people, infected more than 100 million, and disrupted lives in ways we are still trying to understand. Our continued public health response to this ...

The COVID vaccine was linked to a new side effect for older adults.