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Progress in Pediatrics
March 1922

REVIEW OF THE LITERATURE ON RESPIRATORY DISEASES FROM JANUARY, 1920, TO JUNE, 1921

Author Affiliations

NEW YORK CITY
From the Department of Pediatrics of Cornell University Medical College.

Am J Dis Child. 1922;23(3):261-282. doi:10.1001/archpedi.1922.01910390080007
Abstract

INTRODUCTORY  Bacteriology of Normal Throats.—Bloomfield1 found by examinations of cultures made from a number of throat swabs from each of several healthy people that the organisms present, as revealed by this method, fell into two groups: (a) the true normal flora including nonhemolytic streptococci and gram-negative cocci, and (b) pathogenic or nonpathogenic organisms which are accidentally introduced and are present usually only a short time in a given individual. He felt that a true picture of the normal flora of the healthy throat was obtained only by making repeated cultures from the same individual.Moss, Guthrie, and Marshall,2 in a study of the experimental inoculation of healthy human throats with avirulent diphtheria bacilli, concluded that these organisms retain their characteristics despite long residence in the human throat or transfer from one human being to another, and further that they are devoid of pathogenic importance for man. Accordingly,

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