COVID rebound is when COVID-19 symptoms return soon after they go away or a person registers a positive COVID-19 test result after testing negative for several days. COVID rebound can happen in people ...

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 ...

The United States is in the midst of a summer wave of COVID-19 fueled by highly contagious, new variants sweeping the country from coast to coast. As summer travel peaks, experts are warning people to ...

It may be spring, but virus season isn’t over yet. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Flu and Covid, including a new variant called BA ...

The Centers for Disease Control and Prevention (CDC) is tracking the growth of the COVID-19 LB.1 variant as it begins to trail KP.3. For a two-week period starting on June 9 and ending on June 22, the ...

Novel Coronavirus (COVID-19) The COVID-19 pandemic caused by the novel coronavirus (SARS-CoV-2) continues to reshape the globe. Stay current with the latest updates essential for healthcare ...

The National Academies said the condition could involve up to 200 symptoms, make it difficult for people to work and last for months or years. By Pam Belluck One of the nation’s premier medical ...