The COVID-19 Omicron variant accounted for approximately 95.4 percent of U.S. COVID-19 cases diagnosed in the week ended Jan. 1, said the Centers for Disease Control and Prevention (CDC) in an update published Tuesday.
With the CDC’s finding, it suggests Omicron is highly contagious, as it was able to displace the previously dominant Delta strain in only a few weeks. The Delta variant now accounts for about 4.6 percent of all cases, the CDC figures show.
