Maps

Headshot of Joanna Breems, MD, FACP · Clinical Assistant Professor
Joanna Breems
MD, FACP · Clinical Assistant Professor
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Table of Contents

Gram-positive bacteria map

Branching

  • Actinomyces
  • Nocardia (partially acid fast)

Cocci

  • Catalase +
    • Coagulase + S.aureus
      • MSSA
      • MRSA
    • Coagulase – (CONS)
      • S. Epidermidis
      • S. Saprophyticus
      • S. lugdenensis
  • Catalase –
    • α-hemolysis (green)
      • S. pneumoniae: Optochin-S, Bile soluble
      • Viridans Strep: Optochin-R, Bile insoluble
    • β-hemolysis (clear)
      • S. Pyogenes (Group A Strep): Bacitracin-S
      • S. Agalacticiae (Group B Strep): Bacitracin-R
    • γ-hemolysis (none)
      • Enterococcus: Grows in 6.5% NaCl
      • S. bovis: No growth in 6.5% NaCl

Rod

  • Clostridium
  • Lactobacillus
  • Bacillus
  • Listeria
  • Corynebacterium