杭州市2004-2005年学校集聚性类流感疫情的流行特征

目的了解学校类流感疫情流行特征,为采取干预措施提供依据。方法对2004-2005年发生类流感疫情的在校学生和到当地医院就诊的学生进行调查。采集类流感病例鼻咽拭子标本,利用MDCK细胞传代技术分离流感病毒。结果2004-2005年杭州市学校共计报告类流感疫情150起,发病学生2853人,占全部类流感疫情的93.79%;2至4月及9至11月为2个高发期。每起类流感疫情发病人数均数为19.08例,平均报告时间为5.36d。65.85%的疫情检出流感病毒,29.41%的标本检出流感病毒。结论杭州市流感表现为散发和局部爆发的特征。

Epidemiological Chracters of Massive Colonies of Flu Like Cases In Hangzhou Schools from 2004 to 2005

Objective To explore the epidemiological characters of flu like cases in school, and to provide evidence for the intervention measures. Methods Investigation was carried out among the students who had flu like syndromes in 2004-2005. Their nasopharynx mops were collected to examine flu viruses. Results In 2004-2005, 150 flu like outbreaks reported in schools, and 2 853 (93.79%) were students. February to April and September to November were the epidemiological pinnacles. Average cases of epidemic were 19.08, and the average time was 5.36 days. Flu virus was examined from 65.85% epidemics and 29.41% cases. Conclusion Flu outbreaks partially and sporadically in Hangzhou.