A new variant of COVID-19 called XEC is spreading rapidly in Europe and other parts of the world, just after a summer with an ...

Individuals with compromised immunity and persistent COVID-19 infections can harbor drug-resistant variants of the SARS-CoV-2 virus, which have the potential to spread to the general population found ...

An in-depth study of adaptive immune response to SARS-CoV-2 infection concludes that children under 5 years old have a different response compared with older children and adults. The findings make it ...

More than 39 million people around the world could die from antibiotic-resistant infections over the next 25 years, according to a study published in .

To the Editor: It’s September, time to consider getting our fall shots. Against influenza and COVID-19 certainly, and for the elderly and the more susceptible, against respiratory syncytial virus (RSV ...

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

Currently available COVID vaccines target slightly different subvariants. The updated mRNA shots aimed at KP.2 from ...

"These data support a mildly beneficial role of metformin on chronic SARS-CoV-2 outcomes in people with diabetes," the ...

Understanding this “checkerboard” pattern may help determine when best to get a COVID-19 vaccine booster, researchers said.

The monovalent XBB.1.5 COVID-19 vaccine is effective against XBB and JN lineage hospitalization; however, protection against the latter may be attenuated.