2013年3月底,我们获悉在中国有3例患有危及生命的甲型(H7N9)禽流感患者的出现,而此前H7N9禽流感从未在人类中发现。第1例在2013年2月底患病。截止4月21日,共102例被感染;绝大部分病情危重,已有20例死亡。以上数据与日俱增。相比之下,甲型禽流感H5N1主要感染有家禽暴露史的儿童,而H7N9禽流感病例多发生在年龄较大的患者(患者平均年龄64岁)。H7N9禽流感病例已在中国多个省份出现,多在华东地区。其中一些患者有明确 At the end of March 2013, we learned of the presence of three human cases of life-threatening H7N9 bird flu in China, which had never been detected in humans. The first case was ill at the end of February 2013. As of April 21, a total of 102 cases were infected; the vast majority were in critical condition and 20 died. The above data is increasing. In contrast, H5N1 of A virus was mainly infected with children with a history of poultry exposure, whereas H7N9 cases of bird flu occurred in older patients (mean age 64 years). H7N9 bird flu cases have emerged in many provinces in China, mostly in eastern China. Some of these patients are well-defined