After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just...
In a perspective published Jan. 11 in the New England Journal of Medicine, vaccine expert...
Three years into the pandemic, the coronavirus continues to impress virologists with its swift...
New COVID-19 testing mandates for travelers arriving from China into the U.S. went into effect...
The newest COVID-19 variant is so contagious that even people who’ve avoided it so far are...
Some public health experts have been quick to call out the new policy as useless...
CNN — For weeks, scientists have been watching a slew of Omicron descendants duke it...
And without a government program like Operation Warp Speed to develop second-generation vaccines and treatments,...