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In considering the subject of pulmonary tuberculosis, and in endeavoring to support a theory deduced from etiologic facts, which tends to show that the almost universally accepted germ cause of this disease is quite secondary in its influence, it must be admitted that, while it is evident to my mind the ground taken is not irrelevant, much opposition is to be expected.
Most physicians recognize, in certain individuals, a pre-tubercular condition ; meaning by this term that in such persons who subsequently develop tuberculosis an abnormal condition exists, which, while symptomatic or suggestive of consumption, does not give that evidence of the disease which renders the diagnosis absolute; i. e., the demonstration of tubercle bacilli.
It can not be denied that the tubercle bacillus plays an important part in the phenomenal expression, if not in the etiology of tuberculosis, but facts are daily being brought to light which tend
PARSONS FS. SOME POINTS IN THE ETIOLOGY OF PULMONARY TUBERCULOSIS. JAMA. 1895;XXIV(22):838–840. doi:10.1001/jama.1895.02430220016003b
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