The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...

Brett Sutton says it’s of ‘significant concern’ and it has international authorities worried - but what is the dreaded new ...

The more the virus spreads, the more it has "ample opportunity" to mutate, Dr. Anthony Fauci told anchor "GMA" George Stephanopoulos Thursday. The delta variant is fueling the COVID-19 surge in the ...

Moderna on Tuesday released preliminary data indicating its vaccine is likely to hold up against several variants of concern, including the Delta variant. Moderna on Tuesday released preliminary data ...

Prior COVID-19 vaccination did not stop the immune system from mounting a protective response to the delta and omicron strains, though new mutation-specific antibody production dipped slightly, ...

In the article by Xie et al. (Aug. 8 issue) 1 regarding postacute sequelae of SARS-CoV-2 infection (PASC) in the pre-delta, delta, and omicron eras, the authors note that 71.89% of the decrease in ...