Germ Theory vs Terrain Theory

No.11703036 ViewReplyOriginalReport
Terrain Theory's two causes of disease, malnutrition and toxins, has been proven many times.

However has Germ Theory's infectious disease causing agents been proven?

We know bacteria exist they are everywhere but do they cause disease or do they clean up toxins.
We know there are 120nm RNA containing vesicles, are they infectious disease causing viruses or are they exosomes that have unique RNA sequences in them?