Columbia subject headings:
Avian influenza--Government policy--United States.
Avian influenza--Prevention--International cooperation.
Avian influenza--United States--Prevention.
Harvard subject headings:
Avian influenza--Government policy--United States.
Avian influenza--Prevention--International cooperation.
Avian influenza--United States--Prevention.
Princeton subject headings:
Avian influenza--Government policy--United States.
Avian influenza--Prevention--International cooperation.
Avian influenza--United States--Prevention.