瘟疫是一种罕见而潜在致命的细菌性感染。鼠疫在世界大部分地区(包括美国在内)是极其罕见的,全球每年发生的病例有1000-2000例。鼠疫的3种最常见形式是腺鼠疫(淋巴结感染)、肺炎性鼠疫及败血症性鼠疫。鼠疫可通过感染跳蚤的咬伤、接触感染的动物或人类、或实验室暴露而传播给人类。引起鼠疫、鼠疫杆菌的细菌被认为是一种生物威胁媒介,可潜在用作一种生物恐怖主义媒介。近日,FDA批准拜耳医疗保健制药莫西沙星用于鼠疫包括这款药物在肺炎型鼠疫(肺部感染)及败血症性鼠疫 Plague is a rare and potentially fatal bacterial infection. Plague is extremely rare in most parts of the world, including the United States, with 1000-2000 cases occurring each year worldwide. The three most common forms of plague are bubonic plague (lymph node infection), pneumonic plague and septic plague. Plague can spread to humans through flea bites, contact with infected animals or humans, or laboratory exposure. The plague and Yersinia pestis bacteria are thought to be a biological threat medium that could potentially be used as a bioterrorism medium. Recently, the FDA approved the Bayer HealthCare pharmaceutical moxifloxacin for plague, including the drug in the pneumonia-type plague (lung infection) and septic plague