Dr Nabarro, WHO: COVID-19 Omicron has not disappeared. People must keep alert there are variants and mutants that will arise, some will be antagonistic especially to non vaccinated people or immuno compromised.

https://news.sky.com/story/covid-still-full-of-surprises-nasty-and-cunning-and-more-variants-not-far-away-who-warns-12524218