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Omicron and cold-like symptoms rapidly taking over in London
Britain Breaks Daily Record for New Virus Cases
By Mark Landler
COVID omicron variant is 'highly transmissible': South Africa study
By Elizabeth Weise & Karen Weintraub
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Lung tissue study sheds light on fast Omicron spread
By Lisa Schnirring
Omicron more likely to reinfect than Delta, no milder -study
By Clara-Læïla Laudette
Omicron and Its Symptoms: What to Know as Americans Are Catching the New Variant
By Joanna Sugden, Denise Roland & Sarah Toy
How Omicron spreads so fast is the question of the moment. New research is pointing to the answer
By Lauren Pelley
Omicron symptoms could seem like a cold — but don't underestimate this variant, experts warn
By Holly Ellyatt
What makes omicron spread so quickly? A new study offers a tantalizing clue : Goats and Soda
By Michaeleen Doucleff
Omicron variant: What we know — and don't know
By Denise Chow
Omicron: What can we learn from South Africa's experience so far?
By Rachel Schraer & Peter Mwai
What We Know About the COVID-19 Omicron Variant
By Ashley Abramson