Avian flu spreads to 4continents including Africa,after killin 58 million American birds
Bird flu, known as Avian flu, has reached new countries in North and South America, Europe, Asia and Africa and become endemic for the first time in some wild birds that transmit the virus to poultry farms increasing threats to the world’s food supply, that farmers must view the disease as a serious risk all year, instead of focusing prevention efforts during spring migration seasons for wild