<prompt> Most common site of Actinomyces isCervicofacialThoraxAbdomenBrain  <response>: Actinomycosis in human beings occurs in four main clinical forms: Cervicofacial: it is more common, with indurated lesions on the cheek and submaxillary regions Thoracic: Abdominal: Pelvic: Ref: Textbook of microbiology; Annthanarayan and panikers; 10th edition; Pg: 399 