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Article
May 12, 1917

The Journal of The American Medical Association

JAMA. 1917;LXVIII(19):1410-1412. doi:10.1001/jama.1917.04270050112014
Abstract

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Saturday, May 12, 1917

THE FIRST CALL OF OUR ALLIES WAS FOR PHYSICIANS. TWO UNITS ARE ALREADY ON THE ATLANTIC BOUND FOR FRANCE. THE DEMAND FOR MEDICAL MEN IS GREAT. THE TIME HAS ARRIVED FOR PHYSICIANS TO ACT. THE YOUNGER MEN ESPECIALLY WHO HAVE BEEN DELIBERATING AS TO WHETHER OR NOT THEY SHOULD OFFER THEIR SERVIECES SHOULD DECIDE NOW. STOP DELIBERATING AND ACT!

PROPHYLACTIC INOCULATION AGAINST PNEUMOCOCCAL INFECTION  Since the artificial production of immunity has been one of the most effective means for the control of acute infectious diseases, it seems strange that so few attempts have been made to determine the value of this procedure in the prevention of lobar pneumonia. A formidable argument against prophylactic immunization in pneumonia has always been that one attack does not confer protection against a second attack but often leaves the patient more susceptible—a fact which seemingly differentiates lobar pneumonia from almost all other acute infectious diseases. In recent years, however, our ideas of pneumonia have greatly changed, and in the light of newer facts this objection cannot be seriously maintained. Neufeld and Händel and others found that an immune serum of high potency could be developed in animals by repeated inoculation with living virulent pneumococci which was highly specific only for certain strains. There were many strains of pneumococci

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