Fear as bird flu migrates from Russian Siberia

A bird flu outbreak in Russian Siberia worsened on 10 August 2005 as neighbouring Kazakhstan confirmed cases of the deadly H5N1 strain of the virus and Mongolia reported its first cases. The outbreaks, in both domestic and migratory bird populations, have already prompted the European Union to declare a Europe-wide ban on imported birds from both Russia and Kazakhstan to contain the spread of the disease, although neither country exports poultry to the EU.