Or the vaccine itself could just be poison. Basically the idea is that they want to kill you, but if you're in your home then there's not much they can actually do to you. So they try to trick people into going hospitals so they can stick you with something, and that's the actual poison that kills you.

I've seen a few rumors that this is the same thing that happened with the Spanish flu. It wasn't the sickness that killed people, and was actually pretty much wide-scale murder by injection. I haven't looked into this claim though.