Most likely the "vaccine" is at least partially responsible. Most vaccines take around ten years to develop, most of that time being in testing for adverse events.

Given that no one is actually attempting to monitor this, and that health authorities worldwide have tried their best to destroy the control group this seems like a reasonable assumption to make, or at the very least something that should be investigated. But it isn't. There are a couple of subreddits full of stores about vaccine problems.

I see the only comment in this thread asking about the percentage vaccinated / boosted is marked as [dead]. Why? It's a pretty reasonable question given the way the vaccine rollout has been handled.