Officials in Japan have confirmed that the bird flu virus found at a poultry farm is the deadly H5N1 strain of the disease.
Officials in Japan have confirmed that the bird flu virus found at a poultry farm is the deadly H5N1 strain of the disease.
日本官员证实在一家禽养殖农场发现的禽流感病毒属于致命的H5N1型。