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Updated: Apr 13 2017

Hemolysis

  • Overview
    https://upload.medbullets.com/topic/104023/images/hemo.jpg
    Agar plate showing different types of hemolysis.
      • the type of hemolysis present can be used to classify the bacteria
    • Alpha hemolysis
      • dark and greenish
      • "partial" hemolysis
      • bacteria include
        • Streptococcus pneumoniae
          • Optochin sensitive
        • Viridans group streptococci
          • Optochin resistant
    • Beta hemolysis
      • transparent
      • "complete" hemolysis
      • bacteria include
        • Staphylococcus aureus
        • Streptococcus pyogenes (group A strep)
        • Streptococcus agalactiae (group B strep)
        • Listeria monocytogenes
    • Gamma hemolysis
      • unchanged
      • "no hemolysis"
      • bacteria include
        • Enterococcus faecalis (group D strep)
          • can also be alpha hemolytic
    • Notice that hemolysis is generally used to distinguish strains of Streptococcus, but that Staphylococcus aureus and Listeria also have characteristic hemolytic properties
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Microbiology | Hemolysis
  • Microbiology
  • - Hemolysis
4:22 min
1/23/2024
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