摘要
目的调查成都市健康人群甲型H1N1流感感染率,为评估疫情规模、预测疫情趋势、制定防控策略提供依据。方法 2010-01和2010-03采用分层随机抽样,对成都市健康人群分地区分4个年龄组采血进行甲型H1N1流感抗体阳性率检测,采用国家流感中心提供的甲型H1N1的HA(血凝素)进行血凝抑制实验。实验结果采用EXCEL和SAS进行统计描述和分析。结果 1月份调查人群甲型H1N1流感抗体阳性率为26.10%,3月抗体阳性率为41.73%。12～17岁学龄儿童青少年感染率最高,60岁以上年龄组感染率最低;中心城区感染率最高,远郊地区感染率最低。结论成都市甲型H1N1流感抗体阳性率第2次高于第1次,在校学生感染率高于其他人群,中心城区感染率高于郊区。
Objective To understand the infection of 2009 pandemic influenza A（H1N1） virus in healthy population in Chengdu and provide evidence for the development of prevention and control strategies.Methods In January and March 2010,610 healthy people in 4 age groups in Chengdu were selected by stratified random sampling.The serum samples taken from them were tested with hemagglutination inhibition（HI） test recommended by State Influenza Center.ResultsThe infection rate was 26.16% in January and 41.73% in March.The infection rate was highest in adolescent aged 12-17 years and lowest in people aged60 years.The infection rate was higher in downtown area than that in suburb area.ConclusionThe serological surveillance could reveal the real infection rate and provide important evidence for the policy-making of disease control.
出处
《预防医学情报杂志》
CAS
2011年第3期197-199,共3页
Journal of Preventive Medicine Information
关键词
甲型H1N1流感
血清流行病学
感染率
健康人群
2009 pandemic influenza A（H1N1）
serological epidemiology
infection rate
healthy population
