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MORRIS H. KAHN, M.D. (New York)
JAMA. 1919;72(2):102-103. doi:10.1001/jama.1919.02610020020007.
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The use of serum from patients convalescing from postinfluenzal bronchopneumonia in the treatment of this disease was suggested by the author early during the appearance of the epidemic at Camp Taylor. As there was a great demand on our energies at the time, it did not seem advisable to treat with serum a series of consecutive cases entering the hospital, because many of these patients gave promise of recovering without it, and the treatment would have been superfluous.

We therefore selected only such cases for serum treatment as gave a very poor prognosis clinically. Some of these patients appeared moribund. All presented a severe toxemia with extreme dyspnea, marked cyanosis, fever, and a variable but marked degree of lung involvement. Patients that showed signs of improvement in the day or two preceding our visit were not treated, as they promised to progress favorably without treatment. Usually these were selected as


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