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- In the past, highly pathogenic viruses have been isolated from migratory birds on very rare occasions involving a few birds, usually found dead within the flight range of a poultry outbreak. 过去在禽流感爆发的区域内在死亡的候鸟，少数情况在家禽体内分离到了高致病性病毒。
- high pathogenic viruses 高致病病毒
- Do migratory birds spread highly pathogenic avian influenza viruses? 候鸟会传播致病性禽流感吗？
- Highly pathogenic H5N1 influenza A viruses are now endemic in avian populations in Southeast Asia, and human cases continue to accumulate. 现在，高致病性H5N1型流感病毒A是东南亚国家鸟类的常见病了，人类病例也在不断上升。
- When allowed to circulate in poultry populations, the viruses can mutate, usually within a few months, into the highly pathogenic form. 在互相传播时，该型病毒可以发生变异，一般在几个月内，变异成高致病性类型。
- It indicated the Haemophilus parasuis isolate would be a high pathogenic potential strain. 结果表明，此分离株为一高致病潜力的菌株。
- Considerable circumstantial evidence suggests that migratory birds can introduce low pathogenic H5 and H7 viruses to poultry flocks, which then mutate to the highly pathogenic form. 大量证据表明，候鸟可将低致病性病毒传播给鸡群，然后低致病性病毒突变产生高致病性形式。
- The role of migratory birds in the spread of highly pathogenic avian influenza is not fully understood. 目前仍不完全清楚候鸟在高致病性禽流感传播中的作用。
- Further testing is under way to determine the strain and whether the virus is highly pathogenic. 正在进行进一步的检验以确定病毒菌株以及该病毒是否属于高致病性。
- Tests related to highly pathogenic agents should be operated in labs with a corresponding bio-safety level. 若判定为疑似高致病性病原体,应在相应生物安全级别的实验室开展工作。
- high pathogenic avian influenza virus 高致病性禽流感病毒
- The final form of the virus, biomedical researchers fear, will be a highly pathogenic strain of influenza that spreads easily among humans. 生物医学研究人员担心,这种病毒的最终形式将是一种很容易在人群中传播的高度致病的流感毒株。
- Abstract: The highly pathogenic avian influenza virus has a high fatality rate, not only to the farming industry caused a lot of harm, but also to humanlunwen114 health and safety also posed a threat. 摘要：禽流感病毒具有高致病性和高致死率，它不仅给养殖业造成很大的危害，而且对人类的健康和生命安全也构成了威胁。
- Further tests will confirm whether the outbreak is the highly pathogenic H5N1 strain which can be passed on to and potentially kill humans. 进一步的测试;会确定这次爆发是否是可以造成人类死亡的高致病的H5N1病毒导致的.
- We will energetically develop animal husbandry and prevent and control the spread of the highly pathogenic bird flu and other animal epidemics. 稳步推进城镇化，改善农民进城就业环境，加强农民工培训，多渠道扩大农村劳动力转移就业。
- Surveillance for human cases in China intensified over the past month following a recurrence of highly pathogenic H5N1 avian influenza in poultry. 在家禽中反复发生高致病性H5N1禽流感之后，中国在过去一个月内已强化对人间病例的监测。
- These maps show the worldwide distribution of highly pathogenic avian influenza (HPAI), serotype H5N1 reported in human and animals from 2004- 2008. 地图显示二零零四年至二零零八年全世界高致病性禽流感血清分型H5N1人类感染个案和动物感染爆发数字。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
