【Chris】評論

Actinomyces organisms are facultatively anaerobic or strictly anaerobic gram-positive rods.  They grow slowly in culture, and they tend to produce chronic, slowly developing infections. Actinomyces  organisms  colonize  the  upper  respiratory, GI, and female genital tracts but are not normally present on the skin surface. The organisms have a low virulence potential and cause disease only when the normal mucosal barriers are disrupted by trauma, surgery, or infection. Infections caused by actinomycetes are endogenous, with no evidence of person-to-person spread or disease originating fr...