H5N1 kills 13,000 birds in northwest to control what it calls an epidemic of bird flu . 500 fowl that died in Xinjiang Uygur Autonomous Region tested positive for H5N1 . Since the end of 2003 , the H5N1 virus has infected many species of birds in more than 60 countries in Africa , Asia and Europe . In 2003 , China confirmed its first case of bird flu in a human . The virus has killed 500 people since late January .
H5N1 kills 13,000 birds in northwest to control what it calls an epidemic of bird flu . 500 fowl that died in Xinjiang Uygur Autonomous Region tested positive for H5N1 . In 2003 , China confirmed its first case of bird flu in a human . The virus has killed 500 people since late January .