Vaccine prevents avian influenza in chickens, ducks

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An avian influenza vaccine for chickens introduced in China last year was effective, but during surveys scientists detected t -More- 


source http://www.smartbrief.com/branded/D5B61895-8343-46AE-9E8D-69BF8059ECA6/2EF43E6C-497E-4CA1-B91C-8DD392249B07

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