cdc says new covid strain in uk could not be circulating undetected in u.s.
cdc says new covid strain in uk could not be circulating undetected in u.s.
while the variant hasn't been found in the u.s. yet, the cdc noted that scientists haven't sequenced the genetic coding for many covid-19 infections here.", "\"given the small fraction of us infections that have been sequenced, the variant could already be in the united states without having been detected.\"")