<prompt> Which of the following statement regarding actinomycosis is false?Penicillin G is effective in treatmentActinomyces Israeli is the causative organismPresence of sulphur granules in pusNone of the above  <response>: Actinomycosis is caused by A. Israeli a gram positive filamentous anaerobic bacteria which grows as fluff balls at the bottom of the culture tube. Actinomycosis appear as hard, non tender swelling that develop slowly and drain pus through sinus tracts. Penicillin G with surgical drainage is the treatment of choice. 