The Omicron variant of the coronavirus has spread to about one-third of U.S. states, but the Delta version still accounts for most COVID-19 infections as cases rise nationwide, health officials said. #News #Reuters #Omicron #Fauci Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en