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Africa steps up Omicron variant detection as COVID-19 cases rise in southern Africa
Exclusive: U.S. to extend transit mask mandate through mid-March - sources
By David Shepardson
California confirms first case of Omicron coronavirus variant
By Rong-Gong Lin II, Luke Money & maura dolan
Biden announces plan to get booster shots to 100m Americans amid Omicron arrival in US
By David Smith
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Biden's new Covid plan: more boosters, free home testing, and 'monoclonal antibody strike teams'
By Nicholas Florko
CDC confirms first U.S. case of omicron Covid variant has been detected in California
By Spencer Kimball, Jessica Bursztynsky & Dawn Kopecki
COVID-19 in Africa: Why More Vaccines Won’t Stop Omicron
By Chad de Guzman
How South African scientists discovered Omicron and set off a global chain reaction
By David McKenzie & Tim Lister
U.S. Reports Its 1st Omicron Case, in a California Traveler (Published 2021)
By Shawn Hubler, Roni Caryn Rabin & Michael D. Shear
Biden outlines new steps to combat Covid through winter months
By Donald Judd & Kevin Liptak
First known U.S. Omicron case found in fully vaccinated overseas traveler
By Trevor Hunnicutt
This map shows where the Covid omicron variant has been detected
By Nee Lee & Yen Nee Lee