CDC Director Rochelle Walensky said that models project a sharp decline in coronavirus cases in the U.S. by July but warned that variants are a 'wild card' that could reverse the progress. #News #Reuters #COVID #coronavirus #RochelleWalensky 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