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3 February 2006 -- Bulgaria has discovered its first case of bird flu, in a swan on the River Danube.
Authorities in Sofia said samples are being sent to Britain to test whether the bird was infected with the H5N1 strain that can kill people.
Bulgaria's neighbors, Romania and Turkey, have both suffered outbreaks of the deadly H5N1 strain of the virus.
Bulgarian Agriculture Minister Nihat Kabil said on 23 February that he has put veterinary offices on high alert, but stressed that the discovery of one bird with the infection does not mean there is a danger of a wider outbreak.