The early Omicron lab numbers have been crunched and it's becoming clear it will eclipse Delta as the most transmissible variant of Covid-19.
The UK Health Security Agency's findings, released over the weekend, show Omicron will also be better at evading the vaccines we've been using.
Ascertaining Omicron's severity is still some way off for scientists but Canterbury University modeler Michael Plank said its high transmissibility alone is troubling.
He spoke to Corin Dann.
