2009年保山市甲型H1N1流感暴发流行病学及临床特征分析  

Analysis on the epidemiological and clinical characteristics of influenza A( H1N1) virus of Baoshan city in 2009

作　　者：李庆芳[1] 黄东升[1] 马云良[1] 何恺[1] 王生芳[1] 

机构地区：[1]保山市疾病预防控制中心,云南678000

出　　处：《医学动物防制》2013年第12期1319-1321,共3页Journal of Medical Pest Control

摘　　要：目的描述2009年保山市甲型H1N1流感暴发的流行病学特征，为制定甲型H1N1流感防控措施提供参考。方法采用中国卫生部下发的调查问卷对2009年保山市甲型H1N1流感各暴发点的所有病例进行面对面流行病学调查，采用描述性流行病学方法对这些流感病例资料进行流行病学分析。结果2009年9月12日出现首例甲型H1N1流感病例至12月31日，保山市累计报告甲型H1N1流感病例68例，重症病例2例，无死亡病例。最初的病例可能为输人性病例感染所致。研究期间每月均有病例报告，其中以12月最多，共报告36例，占52．9％；地区分布以隆阳区最多，共52例，占76．5％；发病人群分布以学生为主，共56例，占82．35％，5～19岁年龄组55例，占80．88％，男女性别比为1．43：1。主要临床症状为发热（81％）、咳嗽（45％）、咽痛（30％）、畏寒（30％）、肌肉酸痛（27％），其它症状主要涉及头疼、乏力、鼻塞、流涕。结论保山市首发甲型H1N1流感病例为输入性病例感染所致，高发于青少年学生，今后应抓好学校内的甲型H1N1流感的防控工作，做到早发现、早诊断、早隔离、早治疗。Objective To understand the epidemiological and clinical characteristics of influenza A （H1 N1 ） virus in 2009 Baoshan city, Yunnan province, and provide scientific evidences to prevent and control it among young students. Methods A number of surveys of outbreaks on influenza A （ H1 N1 ） virus were performed among two schools with a questionnaire made by China Center for Disease Control and Prevention during the 14 of September to 31 December in 2009. Descriptive study was used to summarize the epidemiological and clini- cal characteristics. Results A total of 68 participants were involved from 14 of September to 31 of December in 2009. Of 68 patients, there were two cases with crucial condition, and no dead cases taken place. During study period, cases of influenza A （H1N1） virus had reported in each month, and 52. 9% （36/68） of cases were reported in December and 76. 5% （52/68） cases reported in Longyang district and 82.35% （56/68） patients were students, among these students, 80. 88% cases with range of age was from 5 years to 19 years. The ratio of male to female was 1.43： 1. The earliest case that had contacted a man with like avian illness who had visited a kin in Guangzhou came back to Baoshan city during summer holidays, the second case that a young student be contacted by her father who came back from Shandong province. Based on expert discussion and epidemiological interference, a series of outbreaks of influenza A （ HI NI ） virus may be attributed to the imported cases. Most of the symptoms and signs were fever （81%）, cough （45%） and sore throat （30%）, chills （30%）, muscular pain （27%） . Other symptoms mainly involved in headache, weak, nasal obstruction, watery nasal discharge, etc. Conclusions Imported cases resulted in the early stage of the epidemic influenza A （ HI N1 ） virus, a number of outbreaks of influenza A （ H1 N1 ） virus mainly took place among young students during 14 September to 31 December in Baoshan city, the prevention and con

关 键 词：甲型H1N1流感 爆发 流行病学和临床 特征 

分 类 号：R373.13[医药卫生—病原生物学] R511.7[医药卫生—基础医学]