“It was Louis Pasteur who convinced a skeptical medical community that contagious germs cause disease; his “germ theory” now serves as the official explanation for most illness. However, in his private diaries he states unequivocally that in his entire career he was not once able to transfer disease with a pure culture of bacteria (he obviously wasn’t able to purify viruses at that time). He admitted that the whole effort to prove contagion was a failure, leading to his famous death bed confession that “the germ is nothing, the terrain is everything.” - Dr. Tom Cowan - thecontagionmyth.com