“Double mutant” COVID variant found in the U.S. as fears grow over a fourth wave. @KayleeHartung reports. https://t.co/OxGdcDsCmh pic.twitter.com/8Y7JPYjcHe— Good Morning America (@GMA) April 5, 2021
“Double mutant” COVID variant found in the U.S. as fears grow over a fourth wave. @KayleeHartung reports. https://t.co/OxGdcDsCmh pic.twitter.com/8Y7JPYjcHe