Here's how it works:

People are in fear of what they think is a plague, so they try to avoid it like a plague. But the reality is, masks don't work, social distancing don't work, and when we go outside, we are most likely being exposed to the CCP virus left and right. HOWEVER. Corona, being a product of China, was shittily made, and is actually not as dangerous as people would like to believe; so our immune systems are kicking corona butt every day (most of our immune systems already know how to fight corona tenfold by now, but obviously we aren't supposed to know that).

And where does the "vaccine" come into all of this? Well, the shot injects some crap into your body that messes with your immune system, making your immune system damaged/tired out. And then, when you get exposed to corona again, like you have many times before, because you have that weakened immune system, you get sick.

... or the "vaccine" results in a false positive on your covid test, which is probably what happened. It sounds like this "John" is actually sick, since he is in the hospital? Or maybe he's just being told he is "asymptomatically carrying covid" which is total bullshit.