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August 12, 1893


JAMA. 1893;XXI(7):243. doi:10.1001/jama.1893.02420590029008

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Dr. Robert Lincoln Watkins, of New York City, had himself inoculated with the tubercular bacillus, in the form of pure culture of the microörganism obtained from phthisical sputum. This was done at the Loomis Laboratory attached to the University of New York. Dr. Watkins also ingested a considerable quantity of the same culture. He has subjected himself to these experiments as an evidence that tuberculosis does not depend solely on the introduction of the bacillus tuberculosis into the human system. He believes that a healthy person, that is a person whose blood does not contain the so-called "third corpuscle," is absolutely immune to the bacillus. He has repeatedly examined his own blood and never having found the dangerous corpuscle, he has determined to put his theory to the test in his own person. Control experiments on one or more guinea-pigs were made with the same virus, in the belief that

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