2009年全球甲型H1N1流感流行病学特征分析

Epidemiological Analysis on the Global Pandemic (H1N1) 2009

截至8月30日，全球5大洲177个国家或地区共报告甲型H1N1流感确诊病例254206例，死亡2837人，病死率1．12％。病例以青壮年为主，无性别差别，年龄中位数12岁～17岁（范围0岁～85岁），约10％需住院治疗，37％的住院病例和80％的死亡病例有基础性疾病史或妊娠。全球甲型H1N1流感总体较温和，适时将其纳入季节性流感常规监测，掌握其流行病学和病原学变化，研制安全有效的疫苗；提高医务人员重症病例救治能力均能有效地预防控制甲型H1N1流感。

Until the 30th August, 254 206 laboratory confirmed A（ H1N1 ） cases, and 2837 fatal cases（the case fatality rate 1.12%） were reported in 177 countries from 5 continents in the whole world. The majorities of these cases were young people, and the age median were 12 - 17 years （range.0- 85 years ）, there was no significant difference in between male cases and female cases. Hospitalization rate was about 10%, 37% of cases in hospitals cases and 80% of fatal cases were in underlying health conditions or pregnancy state. The whole severe level of pandemic （H1N1）2009 was moderate. Effective measures conflicting pandemic（ H1Nl）2009 conclude; integrating A（ H1N1） into the routine surveillance of seasonal influenza, promptly grasping changes in epidemiological and viral characteristics of pandemic （H1N1） 2009, launching studies on effective and safe vaccine, improving health workers＇ abilities in curing the severe patients, et al.