To ID Biomedical, the estimated peak year revenue of the nasal flu cure would be greater than the company's current market capitalization.

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But we have analysed the potential killer virus against the history of the 2009 Swine Flu and where a drugs cure for a future avian human-to-human killer virus will come far too late.

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Consumers should beware, however, of products sold over the Internet claiming to cure or prevent the flu, the FDA said last week.

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