Ok so if I understand you right, bacteria have been shown to adhere to Kochs Postulates and therefore the only point of contention is regarding viruses (?)

The reason I bring up chickenpox is because I have first-hand personal knowledge that this is something which seems to spread from one person to another.

I do not have first-hand personal knowledge that the mechanism of spread is a "virus" (or anything else for that matter).

So my question is do you:
1. Hold an alternative theory of how disease is spread (not by virus)
2. Accept that disease is spread, but do not know how
3. Contend that diseases do not spread between people at all
?