Named after the Greek letter, the omicron variant is the 13th of the SARS-CoV-2 variants to receive a designation by the World Health Organization.
USA TODAY, Des Moines Register
Mon, 11/29/2021 - 12:17pm
Named after the Greek letter, the omicron variant is the 13th of the SARS-CoV-2 variants to receive a designation by the World Health Organization.