Perhaps I am up too late and don't completely understand where your question is coming from... but there's a lot of hope available in biology because DNA is one

Perhaps I am up too late and don't completely understand where your question is coming from... but there's a lot of hope available in biology because DNA is one of the most successfully widely deployed technologies of the last 4 billion years. It's had hundreds of trillions of years being battletested in production environments. It's cheap to copy, replicate and eventually it will be cheap to modify and write. Literally everyone is (badly?) programmed with DNA-- and CRISPR isn't the last word on genome engineering. There will absolutely be changes that large chunks of the population will demand, far and beyond the demand for vaccines.