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August 24, 1901


JAMA. 1901;XXXVII(8):519-520. doi:10.1001/jama.1901.02470340037009

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The medical public will not rapidly give up its convictions as to the danger to human beings of bovine tuberculosis, in spite of the opinion of Dr. Koch. In the present issue we present a paper on the subject by Dr. Salmon, the veterinarian of the Agricultural Department at Washington, which voices the evidences of the transmission theory. It would be clearly unsafe at the present stage of our knowledge to neglect precautions against possible infection from animals. It must be remembered, however, that the facts that seem to point to the existence of this danger are not absolutely conclusive—they have not the value of scientific demonstration—and that our reasonable caution is based on inference, not on proof. An apparent bovine infection, as in the cases related by Salmon and Ravenel, is not an absolutely assured one, and local disease by

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