(CNN) -- The United States' first confirmed case of the Omicron coronavirus variant has been identified in California, according to a source familiar.The World Health Organization designates Omicron...
Jason Hanna, Madeline Holcombe and Michael Nedelman, CNN
• February 4, 2021
(CNN) -- A more contagious coronavirus variant is on the rise in the United States and could become dominant in hot spots like Florida and Southern California "within a few weeks," according to a testing...
