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  2. Streptococcus - Wikipedia

    en.wikipedia.org/wiki/Streptococcus

    Streptococcus Rosenbach, 1884: Species [1] ... grouped in the genus Streptococcus were separated out into the genera ... more than 500,000 deaths every year, ...

  3. Lancefield grouping - Wikipedia

    en.wikipedia.org/wiki/Lancefield_grouping

    Bacteria of the genus Enterococcus, formerly known as group D streptococci, were classified as members of the genus Streptococcus until 1984 and are included in the original Lancefield grouping. [4] Many—but not all—species of streptococcus are beta-hemolytic .

  4. Streptococcus pyogenes - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_pyogenes

    Streptococcus pyogenes is a species of Gram-positive, aerotolerant bacteria in the genus Streptococcus. These bacteria are extracellular , and made up of non-motile and non-sporing cocci (round cells) that tend to link in chains.

  5. Group A streptococcal infection - Wikipedia

    en.wikipedia.org/wiki/Group_A_streptococcal...

    Group A streptococcal infections are a number of infections with Streptococcus pyogenes, a group A streptococcus (GAS). [1] S. pyogenes is a species of beta-hemolytic Gram-positive bacteria that is responsible for a wide range of infections that are mostly common and fairly mild. If the bacteria enters the bloodstream, the infection can become ...

  6. Streptococcosis - Wikipedia

    en.wikipedia.org/wiki/Streptococcosis

    Streptococcosis encompasses a spectrum of diseases caused by bacteria from the genera Streptococcus and Lactococcus. [12] Various species within these genera can cause infections in both wild and cultured animals, including fish and terrestrial species. Commonly affected organisms include:

  7. Streptococcaceae - Wikipedia

    en.wikipedia.org/wiki/Streptococcaceae

    Streptococcus Streptococcaceae are a family of Gram-positive bacteria , placed within the order Lactobacillales . [ 1 ] Representative genera include Lactococcus , Lactovum , and Streptococcus .

  8. Streptococcus sanguinis - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_sanguinis

    Streptococcus sanguinis White and Niven 1946 S. sanguinis is a normal inhabitant of the healthy human mouth where it is particularly found in dental plaque , where it modifies the environment to make it less hospitable for other strains of Streptococcus that cause cavities , such as Streptococcus mutans .

  9. Streptococcus anginosus group - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_anginosus_group

    The group is named after a principal member species, Streptococcus anginosus. The older name Streptococcus milleri (as well as Streptococcus milleri group, SMG) is now pseudotaxonomic, as the idea that these streptococci constituted a single species was incorrect. The anginosus group streptococci are members of the viridans streptococci group. [1]