常見例句雙語例句Not only are seasonal flu strains circulating but also the H5N1 avian influenza virus, which has killed 258 out of 423 people infected since 2003.除了季節(jié)性流感，H5N1禽流感也是會(huì)流通的，自從2003年開始，禽流感已經(jīng)感染了423人，其中造成258人死亡。Research on influenza pandemics and pandemic viruses increased considerably following the first human cases of infection with the H5N1 avian influenza virus in 1997.在1997年發(fā)現(xiàn)首批人患H5N1禽流感病毒感染病例之後，大大加強(qiáng)了對(duì)流感大流行和大流行性病毒的研究力度。At the time, this was considered a likely scenario should the highly lethal H5N1 avian influenza virus develop an ability to spread readily among humans, but it was never a formal definition.儅時(shí)的看法是，如果高致命性H5N1禽流感病毒發(fā)展出人際輕易傳播的能力，就可能會(huì)出現(xiàn)這一情景，但這從來不是一項(xiàng)正式定義。權(quán)威例句Two tests on the woman were positive for H5N1 avian influenza, but the government did not say how she might have contracted the virus.FORBES: Bird Flu Claims More Lives In Shanghai 返回 h5n1 avian influenza virus