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Global alert on BSE
The World Health Organisation has issued a global alert over BSE. Officials in Geneva say they fear mad cow disease may have spread beyond Europe. They are arranging an international conference to warn developing countries about the risk. The BBC's James Helm reports.

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The BBC's Claire Doole in Geneva: "BSE may have spread much farther than Europe"
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The WHO's Gregory Hartel: "The WHO is taking this very seriously"