2009年4月底,墨西哥出现甲型H1N1流感流行。5月,我国香港地区和内地相继出现了甲型H1N1流感确诊病例,且均属于输入性病例。目前国际交流十分频繁,给疾病防控工作带来极大的挑战。在防治甲型H1N1流感期间,疾控工作人员承担了艰巨的任务,突如其来的传染病疫情威胁是否对这部分群 The end of April 2009, Mexico, influenza A H1N1 influenza epidemic. In May, confirmed cases of Influenza A (H1N1) influenza emerged in Hong Kong and Mainland China in succession, all of which were imported cases. At present, international exchanges are frequent, posing great challenges to disease prevention and control. During the pandemic of Influenza A (H1N1), CDC staff shouldered the daunting task of whether the sudden threat of an outbreak of infectious disease would affect this part of the population