[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] These days, it’s a real headache to keep tabs on the coronavirus’s ever-shifting subvariants. BA.2, BA.4, and BA.5, three Omicron permutations that rose to prominence...