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WHO calls for balanced response to new virus variant
By Donato Paolo Mancini
Omicron is the new COVID kid on the block: five steps to avoid, ten to take immediately
By Shabir Madhi
The omicron variant spreads across Europe as new travel bans take effect
By Deepa Shivaram
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South African doctor who raised alarm about omicron variant says symptoms are 'unusual but mild'
By Peta Thornycroft & Will Brown
South Africa says it is being punished for early COVID variant detection
By Frances Kerry & Promit Mukherjee
Omicron, the New Covid-19 Variant: What to Know
By Denise Roland & Joanna Sugden