This one, for the ccp virus, not so much in safety and working is a quite a bit of about or miss.

The problem is that there are no proper control group studies available. And people have been coached into believing that because the zeitgeist said they're "safe and effective" that they are safe and effective. So a large amount of people (even some here) still believe these are "vaccines", even when there's no actual proof that they work at all, because you need effective longitudinal control group studies to actually prove they work. None of those studies are available because as soon as they were concocted they were rolled out so that the general public could be used as unmonitored lab rats.