S aureus

Diseases cauced by staph.aureus1.Superficial infections: charecterized by intense suppuration,localtissue necrosis &followed by local abscess formation.• Impetigo(pyoderma):Skin infection caused by staph aureus,but may also be caused by staphepidermidis&sterptococci.it characterized by formation of vesiclesfilled with serious or mucinus fluid.later on these lesions dry out withscabs form over the vesicles.• Folliculitis,furuncle(boil),styes:Hair follicles infection,if the infection is limited called folliculitis,but ifther is involvment that may required local drinage called furencles.whenthe infection involve the eyelid is called stye• Carbuncles:when multiple interconected abcesses involving hair follicles,sebaciousgland &the surrowending tissues.• postoperative staphylococcal wound infection or infection followingtrauma (chronic osteomyelitis subsequent to an open fracture,meningitis following skull fracture).