A PLAN drawn up by the Bush Administration to combat a pandemic bird flu outbreak reveals that America is grossly unprepared to deal with what would likely be the worst disaster in US history.

The 381-page draft plan, leaked by health officials who claim that it contains fundamental failures, predicts that a full-scale outbreak could kill as many as 1.9 million Americans and put 8.5 million in hospital at a cost of more than $450 billion (£256 billion).

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