JAMA. 1932;98(6):482. doi:10.1001/jama.1932.02730320042012.
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The history of medicine does not lack striking stories of the conquest of science over disease. Some of them are dramatic in their details. Every field of medical research has contributed its quota. The recognition of the bacterial causation of many maladies—a feature made possible by the great advances in knowledge initiated in the days of Pasteur and Koch—has been particularly effective in promoting the attack on a variety of formerly baffling disorders. The results in the case of typhoid and of diphtheria are notable examples of what has been accomplished. It has not been a case of sudden mastery, promoted by a single factor, but rather the consequence of persistent effort based on gradually acquired and growing information— an evolution of success, so to speak. A striking chapter has been recounted recently by Park1 of the New York board of health. It deals with diphtheria, a disease that


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