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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...

    Scarlet fever is also a non-invasive infection caused by GAS, although much less common. The invasive infections caused by Group A β-hemolytic streptococcus tend to be more severe and less common. These occurs when the bacterium is able to infect areas where bacteria are not usually found, such as blood and organs. [8]

  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. Flu, pink eye, strep throat: A guide to the common illnesses ...

    www.aol.com/lifestyle/flu-pink-eye-strep-throat...

    Strep throat symptoms can include: Fever. Pain when swallowing. Sore throat that starts quickly and may look red. Red and swollen tonsils. White patches or streaks of pus on the tonsils.

  7. Streptococcus pyogenes - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_pyogenes

    However, both Streptococcus dysgalactiae and the Streptococcus anginosus group can possess group A antigen as well. Group A streptococci, when grown on blood agar, typically produce small (2–3 mm) zones of beta-hemolysis, a complete destruction of red blood cells. The name group A (beta-hemolytic) Streptococcus is thus also used. [1]

  8. 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 ...

  9. Hemolysis (microbiology) - Wikipedia

    en.wikipedia.org/wiki/Hemolysis_(microbiology)

    If an organism does not induce hemolysis, the agar under and around the colony is unchanged and the organism is called non-hemolytic or said to display gamma-hemolysis (γ-hemolysis). Enterococcus faecalis (formerly called "Group D Strep"), Staphylococcus saprophyticus, and Staphylococcus epidermidis display gamma-hemolysis.