We’re at the end of it right now and yes, those protocols worked
It's all about therapeutics, treating people once they get this mess.
There's nothing that shows so far that getting these vaccines keeps you from getting coronavirus. It's much like people getting a flu shot getting the full-blown flu sometimes.
Also, there's the debate about whether folks who already had coronavirus have better immunity than those who get vaxxed.
Does getting the old coronavirus build you up enough to keep you from getting "Delta"? And now, we got two more that are reportedly resistant to the current vaccines, including the precious one just approved by the FDA.
Since I know someone who got this mess TWICE, I'm more interested in what can be done to TREAT it mores than prevent it.