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  2. Streptococcus - Wikipedia

    en.wikipedia.org/wiki/Streptococcus

    Gamma-hemolytic species cause no hemolysis. [11] Beta-hemolytic streptococci are further classified by Lancefield grouping, a serotype classification (that is, describing specific carbohydrates present on the bacterial cell wall). [6] The 21 described serotypes are named Lancefield groups A to W (excluding E, I and J).

  3. Streptococcosis - Wikipedia

    en.wikipedia.org/wiki/Streptococcosis

    Similarly, group B streptococcus typically denotes Streptococcus agalactiae, although minor beta-hemolytic group B streptococci like S. troglodytidis exist. [15] While most streptococcal illnesses in humans originate from species adapted to humans, such as S. pneumoniae or S. pyogenes, there are zoonotic species capable of causing infections. [15]

  4. 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 ...

  5. The Strep-Causing Infection That’s on the Rise—and How It’s ...

    www.aol.com/lifestyle/strep-causing-infection...

    Group A strep, aka group A Streptococcus, is a bacteria that can cause a range of infections, according to the CDC. Those include strep throat, impetigo, and cellulitis. Those include strep throat ...

  6. Streptococcus agalactiae - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_agalactiae

    Streptococcus agalactiae (also known as group B streptococcus or GBS) is a gram-positive coccus (round bacterium) with a tendency to form chains (as reflected by the genus name Streptococcus). It is a beta- hemolytic , catalase -negative, and facultative anaerobe .

  7. What are the symptoms of a Strep A infection? Here’s what ...

    www.aol.com/lifestyle/symptoms-strep-infection...

    Strep A is a type of bacteria that causes strep throat, but it can also lead to more serious infections. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  8. Viridans streptococci - Wikipedia

    en.wikipedia.org/wiki/Viridans_streptococci

    The viridans streptococci are a large group of commensal streptococcal Gram-positive bacteria species that are α-hemolytic, producing a green coloration on blood agar plates (hence the name "viridans", from Latin "vĭrĭdis", green), although some species in this group are actually γ-hemolytic, meaning they produce no change on blood agar. [1]

  9. Strep infections in children that can result in 'flesh-eating ...

    www.aol.com/news/strep-infections-children...

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