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Article
May 1927

THE ACNE BACILLUS: VARIATIONS IN THE CULTURAL AND MORPHOLOGIC CHARACTERISTICS

Author Affiliations
BALTIMORE
From the Departments of Dermatology, Pathology and Bacteriology, Johns Hopkins Medical School.
Arch Derm Syphilol. 1927;15(5):568-582. doi:10.1001/archderm.1927.02370290043003
Abstract

In an article entitled "The Cultural Requirements of the Acne Bacillus," etc., Ketron and Burky1 briefly described an organism occurring as a contaminant in three of ten strains of the acne bacillus which they were studying at that time. In one instance the organism grew out with the acne bacillus, following the implantation of a seborrheic filament on an agar slant, and in two instances after the contents of acne papules had been planted in the same manner.

Its cultural characteristics, in general, resembled those of the acne bacillus, but it differed considerably from their strains of this organism in its rapidity of growth and, under certain conditions, in its morphology.

The present work deals with a study of this bacillus and, since its cultural requirements and habits are similar to those of the acne bacillus as it is usually described, it will be regarded as a variety of

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