以10~(5.17)ELD_(50)的低致病性禽流感病毒(lowly pathogenic awian influenza virus,LPAIV)气管内注射10日龄SPF鸡,24小时后,重复感染一次;48小时后,气管内注射禽病原性大肠杆菌353(...
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按照在禽类群体中的致病力，可将禽流感病毒分为两类：高致病性或低致病性。
AI viruses are divided into two groups based on their ability to cause disease in poultry: high pathogenicity or low pathogenicity.
野生鸟类，特别是水鸟是低致病性禽流感病毒生态学的关键因素。
Wild birds, particularly waterfowl, are a key element of the viral ecology of low pathogenic avian influenza.
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