<prompt> Which of the following is not true of Actinomycosis?Demonstration of filamentsCaused by Actinomyces israeliiOrganism cannot be culturedSulphur granules in pus  <response>: Ans. is c i.e., Organism cannot be culturedRef: Ananthanarayan, 8the, p. 393; 9the, p. 394; Harrison, 18the, p. 1324; Jawetz, 24the, p. 182Pus containing sulfur granules are washed and cultured anaerobically in thioglycollate broth or Brain heart infusion BHI agar. 