"The bulk of the evidence points to microparasites as the probable cause of sarcomas and carcinomas,'' says Dr. Erwin F. Smith, chief plant pathologist of the U. S. Department of Agriculture, and Vice President of the American Association for Cancer Research.
It was Dr. Smith who demonstrated that the crown gall, a plant disease resembling animal cancer, could be experimentally transmissted from plant to plant by cultures of a microorganism found in the gall. He is convinced that human cancers are caused by a similar infection, though no active parasite, either bacterium...
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