Pathogenesis 沿a, Virulence factors endotoxin phospholipase A, and slime layer Sites: vascular system producing vasculitis血管炎 Characteristic triad of symptoms: fever, headache and rash(no rash with Q fever)Pathogenesis ◼ Virulence factors: endotoxin, phospholipase A, and slime layer ◼ Sites: vascular system producing vasculitis血管炎 ◼ Characteristic triad of symptoms: fever, headache and rash (no rash with Q fever)