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Streptococcus - Wikipedia, the free encyclopedia
Streptococcus is a genus of spherical Gram-positive bacteria belonging to the phylum Firmicutes and the lactic acid bacteria group. Cellular division occurs along a single axis in ...
The Streptococcus
The Streptococcus: A Brief Introduction to the Streptococci. Streptococcus: chains of nearly spherical bacteria. The genus Streptococcus is comprised of a wide variety of both ...
Streptococcus
Find an introduction, illustrations, and photographs. From Todar's Online Textbook of Bacteriology.

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Streptococcus, genus of spherical, gram-positive, aerobic bacteria. The streptococci occur in pairs or chains, and some species are pathogenic in humans. Streptococcal infections include strep throat, scarlet fever, erysipelas, puerperal fever, and some pneumonias. The drugs of choice for treating such infections are penicillin and erythromycin. Cultures of nonpathogenic lactic streptococci are used in the fermentation of dairy products such as cheese and buttermilk.

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