Could those who know please speak about causation?

[Guest guest]

I gather this is a tricky thing and I'd sure appreciate being able to understand

this better.

What, exactly, would someone have to do to prove that exposure they had led to

sickness? If someone had mycotoxicosis, is matching the DNA from the mycotoxin

in a person's tissues to the DNA of the mold/mycotoxin found on the premises

sufficient to demonstrate that the indoor environment made the person sick?

Much appreciated,

~Haley