All coverage
Dow tumbles 900 points for worst day of year on fears of new Covid variant, S&P 500 drops 2%
By Eustance Huang & Jesse Pound
New coronavirus variant detected in Belgium as Europe bans Southern Africa travel
By Carlo Martuscelli & Hanne Cokelaere
New Botswana variant with 32 'horrific' mutations is the most evolved Covid strain EVER
By Luke Andrews
'The virus is always searching for its next move': why science is alert to new variants
By Donato Paolo Mancini, John Burn-Murdoch & Oliver Barnes
South Africa Raises Alarm Over New Coronavirus Variant
By Gabriele Steinhauser
Omicron: How worried should we be?
By James Gallagher
South Africa says travel bans over new variant unjustified
By Alexander Winning & Tim Cocks
Britain alarmed by new COVID-19 variant spreading in South Africa
By Alistair Smout & William Schomberg
New COVID variant Omicron triggers global alarm, market sell-off
By Stephanie Nebehay & David Shepardson