[ad_1] A new subvariant of SARS-CoV-2 is rapidly taking over in the U.S.—the most transmissible that has ever been detected. It’s called XBB.1.5, in reference to...
[ad_1] Many, many millions of years ago, an HIV-like virus wriggled its way into the genome of a floofy, bulgy-eyed lemur, and got permanently stuck. Trapped...