[usrusr]

That's talking about selection for production, not about development. How is development not part of three scope at all? Are they only selecting amongst a pre-developed library? Do they have a reusable process that goes from strain to vaccine and "just works"? The latter would be very similar to a liberal approach like "we got delivery mechanism for mRNA blueprint of spike protein X approved, we can use the same approval for spike protein Y".

[pg_bot]

Here are some links that provide more information on how we make and regulate the flu vaccine.

https://www.cdc.gov/flu/prevent/how-fluvaccine-made.htm

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4947948/#irv123...