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目的了解北京市顺义区学校及托幼机构水痘的流行特征,为采取有效的防控措施提供依据。方法对2007-2008年北京市顺义区学校及托幼机构水痘疫情资料进行流行病学分析。结果2007-2008年顺义区共报告学校及托幼机构水痘病例924例,托幼儿童214例,小学生472例,中学生210例,大学生28例,分别占总病例数23.16%,51.08%,22.73%,3.03%。6～8岁病例报告率最高,12～17岁发生水痘的风险最高,水痘发病风险年龄有高年龄化趋势。无水痘疫苗免疫接种史的320例,占总病例数的34.63%;有免疫史的416例,占总病例数的45.02%。16例并发症的病例均出现在无免疫史学生中。暴发疫情14起,病例共240例,占总病例数25.97%,包括1所幼儿园、10所小学和3所中学。结论顺义区托幼儿童、学生水痘发病风险年龄有向高年龄组位移的趋势。有水痘疫苗免疫史发病的学生症状轻于无免疫史学生。应落实水痘防控措施,把水痘常规免疫作为一项重点工作。
Objective To understand the epidemic characteristics of chickenpox in schools and nurseries in Shunyi District of Beijing to provide evidence for effective prevention and control measures. Methods Epidemiological data of epidemic situation of chicken pox in schools and nurseries of Shunyi District in Beijing from 2007 to 2008 were analyzed. Results A total of 924 chickenpox cases, 214 kindergartens, 472 primary school pupils, 210 middle school students and 28 college students were reported in schools and nurseries in 2007-2008, accounting for 23.16%, 51.08% and 22.73% of the total cases respectively. , 3.03%. The highest incidence was reported in cases of 6-8 years old, the highest risk of chickenpox occurred in 12-17 years old, and the age at risk of chickenpox was high in age. 320 cases of vaccination without chickenpox, accounting for 34.63% of the total number of cases; 416 cases of immunization history, accounting for 45.02% of the total number of cases. All 16 cases of complication occurred in the students without immune history. Outbreak of 14 cases, a total of 240 cases, accounting for 25.97% of the total number of cases, including a kindergarten, 10 primary schools and 3 secondary schools. Conclusions There is a tendency that the age at risk of kindergarten children and pupils in Shunyi District is shifted to higher age group. Students with a history of immunization against varicella vaccination have fewer symptoms than those without immunization. Chickenpox prevention and control measures should be implemented, the routine immunization of chickenpox as a priority.