The new "XEC" COVID-19 variant spreading rapidly in Europe has arrived in the US. What are the symptoms, will it cause a fall ...

Individuals with compromised immunity and persistent COVID-19 infections can harbor drug-resistant variants of the SARS-CoV-2 ...

The new and contagious XEC COVID-19 variant is spreading rapidly in several countries. Will it cause a surge in the U.S.?

COVID symptoms can be mild, severe, or nonexistent, according to the CDC—and can appear as late as two weeks after you’ve ...

Researchers discovered that SARS-CoV-2-specific T and B cells in long COVID patients are maintained for two years, similar to ...

Researchers from Weill Cornell Medicine have used a cutting-edge model system to uncover the mechanism by which SARS-CoV-2, ...

A new study published in Nature Microbiology has revealed that SARS-CoV-2, the virus responsible for COVID-19, evolves more ...

COVID fatigue describes brain fog, mental, and physical weakness after infection. This article covers ways to improve fatigue ...

Postacute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PASC) can be identified using an index of symptoms.