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Asking About Bird Flu

by harryhome64 & 1 other
1. What virus is responsible for Bird flu? 
 There are many subtypes of influenza “A” virus, which affect in a different way poultry, causing mild or serious diseases to birds. 
 The most lethal subtype of influenza “A” ...

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harryhome64
the 15/05/2010 at 07:01

davidpope64
the 15/05/2010 at 07:01