I don’t know whether they even had any data on change difficulty. I think it was more like - we needed a vaccine yesterday and Moderna and BioNTech had the mRNA technology just ready to be able to spin up a vaccine quickly. And that was good enough to save a lot of people from severe disease.
The vaccines initially did just that, it just turns out it was able to adapt anyway or they were wrong.
I don’t know whether they even had any data on change difficulty. I think it was more like - we needed a vaccine yesterday and Moderna and BioNTech had the mRNA technology just ready to be able to spin up a vaccine quickly. And that was good enough to save a lot of people from severe disease.