HPAI spreads more rapidly than LPAI and has a higher death rate in birds.
HPAI传播的速度比LPAI快很多，并且引起鸟类较高的死亡率。
These samples were collected from apparently healthy ducks and initial test results indicate the presence of low pathogenic avian influenza (LPAI) virus, which poses no threat to human health.
这些样本是从外观正常的鸭群中间抽取的，初次调查表明其中含有低致病禽流感病毒，该病毒对人体健康没有威胁。
These samples were collected from apparently healthy ducks and initial test results indicate the presence of low pathogenic avian influenza (LPAI) virus, which poses no threat to human health.
这些样本是从外观正常的鸭群中间抽取的，初次调查表明其中含有低致病禽流感病毒，该病毒对人体健康没有威胁。
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