oa Professional Nursing Today - What you should know about avian flu : flu update
Extracted from text ... 5 April 2006 Vol. 10 No. 2 M Senekal, E Wasserman Introduction Human immunity to influenza A virus depends on the specific subtype. Mortality after exposure to subtypes commonly causing human infection is low (approximately 0.1%). Other subtypes are specifically adapted to cause disease in birds. These subtypes are known as 'avian influenza'. Under certain circumstances avian influenza can also be transmitted to humans, causing a severe infection known as highly pathogenic avian influenza (HPAI), with a mortality currently exceeding 50%. Avian influenza occurs naturally in wild and domesticated birds, especially migratory waterfowl, where the virus is carried in their ..
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