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目的了解苏州市20年来流行性脑脊髓膜炎(简称流脑)的流行病学特征,为有效控制流脑提供科学依据。方法对苏州市1992-2012年流脑疫情、2005-2012年健康人群流脑带菌率和抗体水平调查等资料进行综合流行病学分析。结果苏州市1992-2012年共报告流脑病例164例,年均发病率0.11/10万;流脑发病主要集中在0~29岁年龄(占73.78%);流脑发病高峰为2-4月份(占62.20%);病例中以散居儿童为主(占22.56%);健康人群流脑带菌率为0.64%;健康人群流脑抗体免疫水平:A群抗体阳性率平均为79.16%,C群抗体阳性率平均为54.88%。结论近年来,苏州流脑发病处于低发水平,然而健康人群流脑C群抗体水平普遍较低,健康人群B群流脑的带菌水平较高,应加强B群和C群流脑防治工作。
Objective To understand the epidemiological characteristics of epidemic cerebrospinal meningitis (referred to as “meningitis”) in Suzhou for 20 years and provide a scientific basis for effective control of meningococcal meningitis. Methods The epidemiological data of epidemic encephalitis from 1992 to 2012 in Suzhou City and surveys of the infection rate and antibody level in the healthy people from 2005 to 2012 in the city of Luoyang were conducted. Results A total of 164 cases of meningitis were reported in Suzhou City from 1992 to 2012, with an average annual incidence of 0.11 / 100,000. The incidence of meningitis mainly concentrated in the age range of 0-29 years (73.78%). The peak incidence of meningitis was from February to April (62.20%). The majority of children were scattered children (22.56%). The prevalence of meningitis in healthy population was 0.64%. The immunity level of ECM in healthy population was 79.16% The positive rate was 54.88% on average. Conclusions In recent years, the incidence of meningitis in Suzhou is at a low level. However, the levels of antibodies against meningococcal C in the healthy population are generally low, while those in the healthy population are higher. Therefore, prevention and control of meningitis in groups B and C should be strengthened.