II. Characteristics

  1. Gram Positive branching filaments (fungus-like)

III. Organisms

  1. Actinomyces
    1. Actinomyces israelii (Actinomycosis)
  2. Nocardia (Nocardiosis)
    1. Nocardia asteroides (Pulmonary Nocardiosis)
    2. Nocardia brasiliensis (Mycetoma)

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