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COVID vaccines less effective on Omicron, warns Moderna boss
Will omicron – the new coronavirus variant of concern – be more contagious than delta? A virus evolution expert explains what researchers know and what they don’t
By Suresh V. Kuchipudi
Omicron variant was detected in the Netherlands before S. Africa flights
By Bart H. Meijer, Louise Heavens & Anthony Deutsch
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Wealthy nations starved the developing world of vaccines. Omicron shows the cost of this greed
By Deborah Gleeson
Omicron: What We Know About the Dominant Coronavirus Variant
By Andrew Jacobs, Emily Anthes & Carl Zimmer
WHO urges ‘rational’ measures against Omicron variant: Live news
By Usaid Siddiqui & Ted Regencia
Who’s in? Who’s out? The ethics of COVID-19 travel rules
By Nancy S. Jecker & Caesar A. Atuire
Netherlands says omicron variant was within its borders a week before South African flights prompted panic
By Perry Stein
Existing vaccines might not be as effective against omicron variant, Moderna CEO says
By Timothy Bella & Adela Suliman