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WHO names transmissible new COVID-19 variant 'Omicron'
By Jamey Keaten
The hunt for coronavirus variants: how the new one was found and what we know so far
By Tulio de Oliveira, Wolfgang Preiser & Jinal Bhiman
South Africa accuses UK and others of ‘knee-jerk’ reaction to new variant
By Nick Dall & Lizzy Davies
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Stock market news live updates: Wall Street rocked by new COVID variant fears, Dow plunges over 900 points
By Dani Romero
Belgium confirms case of new, heavily mutated Covid variant
By Robert Towey & Spencer Kimball
November 26 Omicron variant news
By Melissa Mahtani, Adrienne Vogt & Aditi Sangal
COVID: What we know about the omicron variant
By Alexander Freund
WHO labels new Covid strain as 'variant of concern' amid global alarm, names it 'Omicron'
By Saphora Smith
New Covid variant: South Africa's pride and punishment
By Andrew Harding