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目的了解健康人群流行性脑脊髓膜炎(流脑)带菌状况和免疫水平,为流脑的防控提供依据。方法按分层整群抽样方法,在合肥市全市四县四区一市,采集6个年龄组健康人群666人咽拭子及静脉血,分别进行脑膜炎奈瑟菌(Nm)培养及血清抗体检测。结果检测666人咽拭子Nm阳性31份,带菌率为4.7%,其中A群为2.1%,B群为1.8%,C群为0.5%,X群为0.2%,D群为0.2%,其它菌群未检出;血清抗体阳性率,A群阳性率为93.9%,C群阳性率为92.7%。结论合肥市人群流脑免疫处于较高水平,流脑流行风险不高。
Objective To understand the status and immunization status of epidemic cerebrospinal meningitis (meningococcal meningitis) in healthy population and provide basis for prevention and control of meningitis. Methods According to the stratified cluster sampling method, 666 throat swabs and venous blood of healthy population of 6 age groups were collected from four districts and one city of four counties in Hefei. The culture of Neisseria meningitidis (Nm) and serum antibody Detection. Results Thirty-six 666 pharyngeal swabs were positive for Nm, with a rate of 4.7%. Among them, group A was 2.1%, group B was 1.8%, group C was 0.5%, group X was 0.2% and group D was 0.2%. Other The positive rate of serum antibody was 93.9% in group A and 92.7% in group C, respectively. Conclusion Hefei population at higher levels of meningitis, meningitis epidemic risk is not high.