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BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37))
1. The H(37) strain of human tubercle bacillus has been dissociated into two variants,—the R, or avirulent, and the S, or virulent, variants. 2. When their dissociation is complete, colony morphology for each is distinctive and typical. 3. The morphology of the individual bacilli of the two variants...
Autores principales: | , , |
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1934
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2132400/ https://www.ncbi.nlm.nih.gov/pubmed/19870319 |
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author | Steenken, W. Oatway, W. H. Petroff, S. A. |
author_facet | Steenken, W. Oatway, W. H. Petroff, S. A. |
author_sort | Steenken, W. |
collection | PubMed |
description | 1. The H(37) strain of human tubercle bacillus has been dissociated into two variants,—the R, or avirulent, and the S, or virulent, variants. 2. When their dissociation is complete, colony morphology for each is distinctive and typical. 3. The morphology of the individual bacilli of the two variants is different and characteristic. 4. The R variant develops best in an acid medium; the S develops best in an alkaline medium. 5. A method of assortment to facilitate the procedure of forced dissociation has been described. 6. The difference in virulence has been proven by observations on the pathogenesis of the variants. |
format | Text |
id | pubmed-2132400 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1934 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21324002008-04-18 BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) Steenken, W. Oatway, W. H. Petroff, S. A. J Exp Med Article 1. The H(37) strain of human tubercle bacillus has been dissociated into two variants,—the R, or avirulent, and the S, or virulent, variants. 2. When their dissociation is complete, colony morphology for each is distinctive and typical. 3. The morphology of the individual bacilli of the two variants is different and characteristic. 4. The R variant develops best in an acid medium; the S develops best in an alkaline medium. 5. A method of assortment to facilitate the procedure of forced dissociation has been described. 6. The difference in virulence has been proven by observations on the pathogenesis of the variants. The Rockefeller University Press 1934-09-30 /pmc/articles/PMC2132400/ /pubmed/19870319 Text en Copyright © Copyright, 1934, by The Rockefeller Institute for Medical Research New York This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Steenken, W. Oatway, W. H. Petroff, S. A. BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title | BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title_full | BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title_fullStr | BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title_full_unstemmed | BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title_short | BIOLOGICAL STUDIES OF THE TUBERCLE BACILLUS : III. DISSOCIATION AND PATHOGENICITY OF THE R AND S VARIANTS OF THE HUMAN TUBERCLE BACILLUS (H(37)) |
title_sort | biological studies of the tubercle bacillus : iii. dissociation and pathogenicity of the r and s variants of the human tubercle bacillus (h(37)) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2132400/ https://www.ncbi.nlm.nih.gov/pubmed/19870319 |
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