Directions For Laboratory Work In Bacteriology

Paperback | February 4, 2012

byFrederick George Novy

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894. Excerpt: ... STREPTOCOCCUS PYOGENES. Rosenbach (1884). Origin.--In abscesses pysemia, etc. Similar, if not identical streptococci, are to be met with under most varied conditions. Tlius lhey are found in the mouth and sputum, on the mucous membranes of the nose, urethra, vagina", etc. They are also frequently present as a result ol 'mixed in ei-tion'" in diphtheria, typhoid fever, pneumonia, tuberculosis, scarlet fever, etc. Form.--Spherical cells or cocci which may grow in pairs, but usually forms rosary-like chains of 20 to 30cells. Almost identical with the streptococcus of erysipelas. Motility.--None. Sporulation.--N one. Anilin Dyes.--Is stained readily; also by Gram's method. Growth.--The characteristics of growth on artificial media are essentially the same as those of the erysipelas streptococcus. So much so that the two organisms are frequently considered as one and the same species. Oxygen requirements.--Is a facultative am.e.obe. Temperature.--Grows slowly at room temperature; best at 35-37 C. Behavior to Gelatin.--Does not liquefy. Pathogenesis.--Mice and rabbits are susceptible--distinction I mm the streptococcus of erysipelas. Like the Fiankel diplococcus, it is a widely distributed engenderer of inflammatory processes, either in connection with other diseases as diphtheria, scarlet fever, etc., or by itself producing effects depending largely upon the locus of inoculation. Thus it. is apparently the sole cause of puerperal fever; infection of the lymphatics of the skin induces erysipelas, while suhciitaneously purulent ersipelatoid changes results. Is also considered the cause of endocarditis although this at times may be due to other organisms which have the similar property of inducing inflammatory changes, as the Fiankel diplococcus and the Staphyloc...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894. Excerpt: ... STREPTOCOCCUS PYOGENES. Rosenbach (1884). Origin.--In abscesses pysemia, etc. Similar, if not identical streptococci, are to b...

Format:PaperbackDimensions:42 pages, 9.69 × 7.44 × 0.09 inPublished:February 4, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217466834

ISBN - 13:9780217466837

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