Bacteria

Aka: Bacteria, Bacterial Infection

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II. Types: Gram Positive

  1. Cocci
    1. Facultative Anaerobes
      1. Staphylococcus (cocci in clusters)
    2. Microaerophilic
      1. Streptococcus (cocci in chains, except pneumococcus which is in pairs)
      2. Enterococcus (cocci in chains)
  2. Rods
    1. Obligate Anaerobes
      1. Clostridium (spore forming)
    2. Facultative Anaerobes
      1. Corynebacterium
      2. Listeria
      3. Bacillus anthracis (spore forming)
    3. Obligate aerobes
      1. Bacillus Cereus (spore forming)
      2. Mycobacterium (weakly Gram Positive but strongly acid-fast)
  3. Branching
    1. Facultative Anaerobes
      1. Actinomyces
    2. Obligate aerobes
      1. Nocardia (also weakly acid fast)

III. Types: Gram Negative

  1. Cocci
    1. Obligate aerobes (all are cocci in pairs)
      1. Neisseria
      2. Moraxella catarrhalis (cocci in pairs)
      3. HaemophilusInfluenzae (cocci in pairs)
  2. Rods (in general)
    1. Facultative Anaerobes
      1. Francisella
      2. Pasteurella
      3. Gardnerella
    2. Obligate aerobes
      1. Bordatella
      2. Legionella
      3. Brucella
  3. Rods (gastrointestinal)
    1. Obligate Anaerobes
      1. Bacteroides
    2. Facultative Anaerobes
      1. Escherichia coli (has flagella)
      2. Shigella
      3. Salmonella
      4. Yersinia
      5. Klebsiella
      6. Proteus
      7. Enterobacter
      8. Serratia
      9. Vibrio (has flagella)
      10. Helicobacter
    3. Microaerophilic
      1. Campylobacter
    4. Obligate aerobes
      1. Pseudomonas
  4. Spirochetes (spiral-shaped, dark-field positive)
    1. Microaerophilic
      1. Treponema
      2. Borrelia
      3. Leptospira
  5. Pleomorphs
    1. Obligate aerobes
      1. Bartonella (facultative intracellular)
    2. Obligate Anaerobes (also obligate intracellular)
      1. Chlamydia
      2. Rickettsiae

IV. Types: Miscellaneous

  1. Gram Neutral Coccus (no cell wall)
    1. Facultative Anaerobe
      1. Mycoplasma
  2. Acid Fast Bacteria (Mycobacterium)
    1. Mycobacterium tuberculosis
    2. Mycobacterium marinum
    3. Mycobacterium Avium Complex
    4. Mycobacterium bovis
    5. Mycobacterium scrofulaceum
    6. Mycobacterium ulcerans
    7. Mycobacterium leprae (Leprosy, Hansen's Bacillus)

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Related Topics in Bacterial Infections

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