1. A chronic, spreading suppurative and granulomatous disease primarily caused by the gram-positive anaerobic bacteria Actinomyces israelii. Several clinical types can be recognized.

Infection bactérienne granulomateuse, suppurative, étendue et chronique provoquée par la bactérie anaérobique Gram positive Actinomyces israelii.

2. Actinomycosis is a suppurative granulomatous disease caused by a different Actinomyces species, and most generally by a Gram-positive anaerobic bacillus, Actinomyces israelii.

L’actinomycose est une maladie suppurative subaiguë pseudotumorale due à un bacille Gram positif anaérobie, Actinomyces israelii.