Testing of vaccines against this new variant is already starting.[1] First results in 2 weeks.

Pfizer says that if they have to generate a new vaccine for this variant, it will take about 100 days.[2] That's the great thing about this mRNA vaccine technology - given the gene sequence of a virus, a vaccine can be designed. The original Moderna vaccine was designed in two days.

[1] https://www.newsweek.com/omicron-variant-prompts-concerns-ab...

[2] https://www.msn.com/en-ie/news/world/pfizer-release-statemen...