SACCHAROLYTIC 



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Remarks. — Bacillus feseri jTrevisan, 1885, the causal organism of quarter- 

 evil, is the same asB. chauvesi Arloing, Cornevin, and Thomas, 1887; B. car- 

 bonis Migula, 1900; B. anthracis sy mpiomati ci Kxuse, 1896; and the Bacillus of 

 Rauschhrand auctores. 



The Vibrion septique of Pasteur is the same as the bacillus of Ghon and Sachs, 

 and has been found in gas gangrene ; it really covers a group of strains which 

 agree in morphology and in cultural characters, as well as in pathogenicity, 

 but their agglutinative reactions are different. 



Subgroup Saccharolytic. 



Synonyms. — Welchii subgroup ; Perfringens subgroup. 



Definition. — Tetanus group, liquef3dng gelatine, usually causing stormy 

 fermentation in milk, in which spores are not formed. Do not blacken meat 

 or liquefy blood serum. 



Classification. — The following organisms belong to this group : — 



1. B. welchii Migula, 1900. {Synonyms : — B. perfringens Veillon and 



Zuber, 1898; B. aerogenes capsulatus Welch and Nuttall, 1892; B. 

 phlegmonis emphysematosi Fraenkel, 1902; B. saccharobutyricus 

 immobilis Schattenfroh and Grassberger, 1900; B. enteritidis sporo- 

 genes Klein, igi 5, pro parte. This organism is merely a mixture of 

 B. welchii and B. sporogenes, Achalme's bacillus.) 



2. B. fallax MVeinherg, 1915. 



3. B. cedematiens Weinberg and Sequin, 191 5. 



4. B. aerofetidus Weinberg, 1916. 

 They may be differentiated as follows:— 



A. Non-motile : — • 



Saccharose and lactose fermented, but salicin not fermented — 

 Welchii. 



B. Feebly motile in cultures, more motile in tissues : — 



I. Saccharose and salicin fermented, but lactose not fermented — • 

 Fallax. 



II. Saccharose not fermented, but lactose and salicin fermented — • 

 Aerofetidus. 



III. Saccharose, lactose, and salicin not fermented — (Edematiens. 



Subgroup Proteolytic. 



Definition. — Tetanus group liquefying gelatine and inspissated blood 

 serum. Meat media blackened. Milk usually digested without forming a 

 clot. Colonies grow out in long tangled filaments. 



Classification. — The following organisms belong to this subgroup : — 



1. B. tetani Fliigge, 1886. 



2. B. sporogenes Metchnikoff, 1908. [Synonyms : — B. cadaveris sporo- 



genes Klein, 1901; B.oedematis maligni Koch, 1881; B . enteritidis 

 sporogenes Klein, 1895, pro parte: B. putrificus coli Bienstock, 1906.) 



3. B. botulinus van Ermengem, 1898. 



4. B. histolyticus Weinberg a.nd Sequin, 1916. 

 They may be differentiated as follows :■ — 



A. Dense white balls in four to five days in meat media : — - 



Very few large subterminal spores in culture. Pathogenic for 

 laboratory animals — -Histolyticus. 



B. No formation of white balls in meat media : — 



I, Non-pathogenic for laboratory animals: — • 



Central, subterminal, or terminal spores a marked feature in 

 cultures — Sporogenes. 



II. Pathogenic for laboratory animals : — 



{a) Spores oval, central, or terminal — Botulinus. 

 [b) Spores round and terminal — Tetani. 



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