Thank you. Stands to reason that any fatal bug transmissible to humans is also transmissible back to birds, the canaries in the coalmines.
Also raises some interesting evolutionary questions, but we'll leave that alone.. :)
The real deal on the flu vaccine:
MEETING ON INFLUENZA VIRUS VACCINE
FORMULATION FOR 2003-2004
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TUESDAY,
MARCH 18, 2003
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The meeting was held in Conference Room A on the 11th Floor, 5515 Security Lane, at 10:30 a.m., Dr. David Stephens, Committee Chair, presiding.
http://www.fda.gov/ohrms/dockets/ac/03/transcripts/3941t1.doc