Just because you’ve been exposed, doesn’t mean you are immune. Just because you’ve been vaccinated doesn’t mean you’re immune. Tests have false readings, both

Just because you’ve been exposed, doesn’t mean you are immune. Just because you’ve been vaccinated doesn’t mean you’re immune. Tests have false readings, both positive and negative. Tests are a point-in-time thing. They don’t tell you anything useful about what happens if you get exposed five minutes or five days after the test. Or, if your infection wasn’t far enough along to be detected. So, you have to keep taking them. There are no panaceas. But there are measures you can take to reduce your risk of infection, and to reduce the likely severity of infection if you do have a breakthrough. They seem to be failing to recognize the difference, and failing to even bother to try reducing the risk.