美国控制流行性脑脊髓膜炎暴发，采用对高危人群接种流脑多糖体菌苗法。对散发流脑的密切接触者，包括流脑患者的家属，托儿所接触者、暴露于病人口腔分泌物的人（如接吻、日对日呼吸、作气管内插管），则以采用化学预防为主要手段。目前选用的药品有三种。1．利福平可有效的杀 The United States controls epidemic outbreaks of epidemic cerebrospinal meningitis, using high-risk groups inoculated with polysaccharides from meningococcal bacilli. For close contact with sporadic brains, including families of patients with epidemic encephalopathy, contact with nurseries, and people exposed to the patient’s oral secretions (such as kissing, day-to-day breathing, and endotracheal intubation), the use of chemopreventive The main means. There are three types of drugs currently selected. 1. Rifampicin can effectively kill