| 1. | Bird flu is a contagious disease caused by type a flu virus
禽流感是由a型流感病毒引起的传染性疾病。 |
| 2. | Wild waterfowl are considered the natural reservoir of all influenza a viruses
野生水鸟是a型流感病毒的天然宿主。 |
| 3. | That strain , influenza a ( h5n1 ) does not yet pass readily from one person to another
这种禽流感病毒株是一种a型流感病毒，品系为h5n1 。 |
| 4. | Avian influenza is an infectious disease of birds caused by type a strains of the influenza virus
禽流感是由a型流感病毒引发的鸟类传染病。 |
| 5. | Swine influenza virus is a type a influenza virus and as such is placed in the orthomyxovirus group
猪流感病毒是一种a型流感病毒，因而列入正粘病毒组中。 |
| 6. | Avian influenza ( ai ) was caused by avian influenza virus ( aiv ) , which was first reported in 1878 in italy
禽流感( avianinfluenza ， ai )是由a型流感病毒引起的一种禽传染病，于1878年首次在意大利暴发流行。 |
| 7. | Although dramatic variation occurs frequently in genome of type a influenza virus , the np gene is comparatively conservative representing virus type specificity
虽然a型流感病毒变异频繁，但其核蛋白（ np ）是其保守性蛋白，具有种群和型的特异性。 |
| 8. | Fifteen subtypes of influenza virus are known to infect birds . to date , all outbreaks of the highly pathogenic form have been caused by influenza a viruses of subtypes h5 and h7
目前已知有15种流感病毒的副型能感染鸟类，而迄今所有致病性强的疫症均由a型流感的h5与h7副型引起。 |
| 9. | " our tendency is to use antibiotics to be quite safe . now that we hae some rapid diagnostic methods , we can tell their doctors that your patient has influenza a .
“人们通常认为使用抗生素是非常安全的。既然我们有了快速诊断方法，我们就可以很快告诉医生，他的病人患了a型流感。 ” |
