Why haven’t they updated the vaccine? I thought one of the major benefits of this technology was the ease with which you can modify them.
And the others are following suit in similar timeframes (2)
The hard part is deciding if this variant is the one that you're going to vaccinate against for a year or more. That takes data, which also takes time.
1) https://www.theguardian.com/society/2021/nov/26/biontech-say...
2) https://www.reuters.com/business/healthcare-pharmaceuticals/...
https://www.independent.co.uk/news/uk/omicron-oxford-covid-a...