A biological classification has been made of thirty strains of Friedländer's bacillus. This study reveals that there exist among these strains three sharply defined and specific types and one heterogeneous group. The three types are Type A, fifteen strains; Type B, six strains; Type C, three strains; and Group X, six strains. The agglutination, agglutinin adsorption, protection, thread, and precipitin reactions have been employed in the working out of this classification, and the types have been proved highly specific by means of each serological test.
Article| July 01 1926
A BIOLOGICAL CLASSIFICATION OF ENCAPSULATUS PNEUMONIÆ (FRIEDLÄNDER'S BACILLUS)
Louis A. Julianelle
From the Hospital of The Rockefeller Institute for Medical Research.
Received: May 12 1926
Online Issn: 1540-9538
Print Issn: 0022-1007
Copyright, 1926, by The Rockefeller Institute for Medical Research New York
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Louis A. Julianelle; A BIOLOGICAL CLASSIFICATION OF ENCAPSULATUS PNEUMONIÆ (FRIEDLÄNDER'S BACILLUS) . J Exp Med 1 July 1926; 44 (1): 113–128. doi: https://doi.org/10.1084/jem.44.1.113
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