More not-so-good news about Omicron, It is probably has a longer tail of infectiousness than has been assumed (notably, 5 days of isolation probably isn’t enough).
How does Omicron spread so fast? A high viral load isn’t the answer (nature.com)
In countries around the world, Omicron has rapidly surged past other variants to become the dominant SARS-CoV-2 strain. Now, two studies show that the variant has achieved success despite causing viral levels in the body that are similar to — or lower than — those of its main competitor, the Delta variant