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JAMA. 1901;XXXVI(18):1256. doi:10.1001/jama.1901.02470180038005.
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That there is some as yet undiscovered fact or that in the individual case turns the scale for or against infection would appear all too obvious from an abundance of evidence. Of several persons equally exposed, a number will surely be attacked, while another will surely escape. Such susceptibility and immunity are observed not alone in medicine proper, but in surgery as well. The most scrupulous attention to every detail will not in some instances insure against wound infection, while in others the grossest carelessness or even the total want of every precaution will fail to be attended with any undesired result. This latter peculiarity is often strikingly illustrated in the mutilations practiced by the insane, in other self-inflicted injuries and in accidental lesions. A remarkable instance of toleration of this character, bearing the stamp of authenticity, has recently been reported by Dr. Robert Löffler.1 A woman, 42 years


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