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How Widespread is Avian Flu?
Cases
of the HPAI A(H5N1) strain have been confirmed in 53 countries
to date and on 4 continents: Asia, Africa, Europe, and Oceania.
Tens of millions of birds have died from bird flu and hundreds
of millions have been slaughtered to prevent its spread.
The disease is most common in poultry and certain types
of waterfowl, but has infected many avian species.
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