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2009年3月,墨西哥和美国等国家先后暴发“人感染猪流感”疫情,这次流感大流行在全球共造成20%～30%的人群感染,其中10%～15%的人群发病,死亡人数超过28万[1]。我国人群感染状况血清学横断面调查显示,普通人群抗体阳性率为17.1%,发病率为15.9%,估计流行期间我国共有2.07亿人感染,其中约1亿人发病[2]。我国卫生部将
March 2009, Mexico and the United States and other countries have outbreak of “human infection with swine flu” epidemic, the influenza pandemic in the world caused a total of 20% to 30% of the population infected, of which 10% to 15% of the population incidence, More than 280,000 people died [1]. Serological cross-sectional survey of population infection in China showed that the positive rate of antibody in the general population was 17.1% and the incidence rate was 15.9%. It is estimated that there are 207 million people infected in China during the epidemic period, of which about 100 million people are affected [2]. China’s Ministry of Health will be