FOR most of the past three years, the highly pathogenic bird flu known as H5N1 has been found mainly in Asia.
FOR most of the past three years, the highly pathogenic bird flu known as H5N1 has been found mainly in Asia.
过去的近三年中，H5N1型高致病性禽流感主要出现在亚洲，如今已波及许多欧洲国家，为我们敲响了疫情广泛流行的警钟。