Here's a thought. A normal vaccine is, or at least used to be, a weakened or killed version of the thing you are trying to prevent. The idea being that being weakened or dead, it allows your body to produce the antibodies needed to fight off the bug without the bug being very strong.

So, is the current vaccine the same thing? Is it allowing your body to naturally produce the needed antibodies, or is it some other kind of vaccine? If it is along the lines of the old way of doing things, would you not naturally test, "positive," for whatever you're testing for if your vaccine was essentially the bug but in a weakened or killed condition?

Just wondering.