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How does avian influenza spread among birds?

·Å´ó×ÖÌåËõС×ÖÌå·¢²¼ÈÕÆÚ£º2007-11-28
ºËÐÄÌáʾ£ºInfected birds shed influenza virus in their saliva, nasal secretions, and faeces. Susceptible birds become infected when they have contact with contaminated excretions or with surfaces that are contaminated with excretions or secretions. Domesticat

      Infected birds shed influenza virus in their saliva, nasal secretions, and faeces. Susceptible birds become infected when they have contact with contaminated excretions or with surfaces that are contaminated with excretions or secretions. Domesticated birds may become infected with avian influenza virus through direct contact with infected waterfowl or other infected poultry or through contact with surfaces (such as dirt or cages) or materials (such as water or feed) that have been contaminated with the virus.
      ¸ü¶à·­ÒëÏêϸÐÅÏ¢Çëµã»÷£º http://www.trans1.cn
      ¹Ø¼ü´Ê£º avian
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