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Isn't the problem with Rhinoviruses (colds) that the buggers mutate so much and there are 100s of them?
The other cold like coronas just aren't dangerous enough to attract lots of investment, they seem to be 10-15% of what we would call "a cold".
If SARS2 is reasonably stable, like the flu, perhaps we can have success this time. If not, whew... we have to infect everyone strong enough on purpose in phases?
Don't really want a Black Plague scenario of "congrats, you now have a boosted immune system and gene pool permanently and 1-3% of your population is gone, soz"
JWestland
I'm not sure that's necessarily true. 4 common human coronaviruses form part of the collection of viruses we collectively refer to as the common cold. Considerable amounts of time and effort have been spent trying to develop vaccines. None have succeeded. Considerable efforts were also made to finding a SARS vaccine. There is none.
Maybe this time it'll be different, but the assumption that we'll be able to find a vaccine against SARS2 because we've been able to develop vaccines for other entirely different types of virus is quite a leap of faith. And as we know from HIV, throwing vast amounts and money and time at a problem doesn't necessarily result in an effective vaccine.