220例甲型H1N1流感病例流行病学调查分析

Epidemiological Survey and Analysis in 220 Cases with Influenza A (H1N1)

目的:进一步熟悉、掌握甲型H1N1流感流行病学特点,为预防和控制甲型H1N1流感提供科学依据。方法:回顾分析某定点医院收治的220例甲型H1N1流感病人的相关资料。结果:输入性病例74例,其中境外输入57例;周边地区转诊病例15例,本土病例131例;男109例,女111例;平均年龄19.4±9.3岁;学生183例,占83.2%,以在校集中居住的初高中学生及大学生为多的聚集性群体发病为主,84.1%的患者与甲型H1N1流感疑似或确诊病人接触及感冒病人有明确接触史,潜伏期2.22±0.92d。结论:甲型H1N1流感传染源、传播途径、易感人群3个环节控制难度大。

Objective：To know and be familiar with the features of influenza virus A（H1N1）,and to provide scientific evidence for preventing its spreading.Methods：Analyzed the relative documents of 220 patients with H1N1 virus in a specific hospital.Results：In 74 cases,57 cases were from abroad;15 cases were transferred from nearby areas,and 131 cases were from local areas;109 cases ere male and 111 cases were female;the average age was 19.4 ± 9.3;183 cases were students,the most came from the senior and junior middle school.Confirmed that 84.1% of the patients had contacted with H1N1 virus or question patients or flu.Conclusion：It is very difficult to control the epidemic source,spreading way,and human beings are easy to be effected.