avian disease造句

• At least one avian disease pathogen has been found .
  已经发现至少有一种禽病的病原体。
• However, there has been no report on genetic vaccination against avian diseases using s . typhimurium as the oral delivery vector for dna vaccines
  但目前国内外还未见用减毒沙门氏菌作为载体传递禽类dna疫苗的报道。
• In order to develop genetic engineered vaccines which are safe, convenient for use for different avian diseases, we designed a series of experiments to reach the goal
  鸡马立克氏病、新城疫、禽流感是严重威胁我国养禽业发展的三种主要传染病。
• While bird flu has been known as an avian disease for more than 100 years, it has only been in the last seven years that there have been documented cases of bird-to-human infection, often with fatal results
  禽流感一百多年来一直被视为一种禽鸟疾病，但一直到七年前，才有记录显示出现了人类遭禽鸟感染的病例，且往往造成致命的结果。