CNN.com - RSS Channel - HP HeroWhy the Delta variant is spreading so fast

• US extends travel restrictions as Covid cases surge • Analysis: The White House has a Covid transparency problem • Watch: Doctor says unvaccinated Covid patients beg for vaccine

July 22, 2021 at 03:55AM https://www.cnn.com/2021/07/21/health/delta-variant-covid-19-explainer/index.html• US extends travel restrictions as Covid cases surge • Analysis: The White House has a Covid transparency problem • Watch: Doctor says unvaccinated Covid patients beg for vaccine