Actinomycosis pathophysiology

Pathophysiology

 * 6 species cause disease in humans:
 * A. israelii
 * A. Naeslundii
 * A. odontolyticus
 * A. viscosus
 * A. Meyeri
 * A. gerencseriae
 * Gram positive filamentous rod
 * Sulfur Granules
 * Actinomyces from within, Nocardia from without
 * Generally low pathogenicity and cause disease only in the setting of antecedent tissue injury