What is the original source of ULS Probiotics?

The eight probiotics in the Ultimate Probiotics Formula are originally isolated from dairy, human or unknown sources.

Originally isolated from a dairy source:
Lactobacillus casei
Bifidobacterium longum
Streptococcus thermophilus

Originally isolated from a human source:
Lactobacillus acidophilus
Bifidobacterium bifidum
Bifidobacterium lactis

Originally isolated from an unknown source:
Lactobacillus rhamnosus
Lactobacillus salivarius