Vaccines only work if exposure causes immunity lasting long enough to get through at least a given period. But if exposure leads to endogenous immunity, then the vaccines is not formally needed, and particularly not for diseases which are not that dangerous for most people, which is the case with COVID-19.
A vaccine would be for the elderly, and would only be more use than harm if it were proven safe through prolonged and honest testing, not the rabbit race we can expect from all the labs dashing through every sort of traditional restraint in the hope of cashing in on trillions of dollars.
The best way out of this whole thing is to do nothing. Let everyone under 55 back to work tomorrow, with no masks and no social distancing. Keep a certain capacity in the hospitals open for overflow, but otherwise restart all normal work.
One month, or at most two or so, and we’re done. We should have done this back in April, but as I’ve said, a lot of people are ENJOYING the misery of the world.
And to be clear, I see cowards and fools in every direction. Trump is an exception, but he is one of the only ones. I don’t expect anyone to have this courage. But it is the right path. I would bet my own life on it without hesitation, and would be quite willing to get injected with this thing tomorrow.