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 ...

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 ...

Medicine can help people who are at risk of, diagnosed with, or have symptoms of COVID-19.

Patients with COVID-19 can show several different antiviral immune response patterns, which may influence how the disease ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

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 ...

While an increasingly anxious world watched a new coronavirus spread across the globe in early 2020, veteran immunologist Rafi Ahmed quickly grasped that his field was about to experience something ...

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, ...