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Article
January 17, 1891

THE ETIOLOGY OF TUBERCULOSIS.

JAMA. 1891;XVI(3):98-99. doi:10.1001/jama.1891.02410550026006

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Abstract

Some important researches on this subject have been published in the Medical Record by Dr. H. P. Loomis, of New York. Starting from the well-known facts that tubercular deposits are sometimes found in the bronchial glands of persons who give no evidences of tuberculosis of other organs, and that, in some cases of pulmonary consumption, tubercles of apparently older date in the bronchial glands seem to have been the starting point of the infection, he undertook to determine in how large a proportion of persons who were free from visceral tuberculosis the bronchial glands contained the infecting element. For this purpose he tested the bronchial glands of forty-eight persons, dying from accident or acute disease, by triturating the glands, with due precautions against contamination, in distilled water, and injecting the mixture into the pleurae of rabbits. The rabbits were killed after the lapse of a sufficient time, and, in case

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