* Health and Medical News:US: Bird flu vaccine not good enough for outbreak

A bird flu vaccine doesn't work well enough to approve it for emergency use against the current outbreak, the U.S. Department of Agriculture said.

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via Health and Medical NewsHealth and Medical News Pfizer Inc has already had its takeover overtures rebuffed three times by rival AstraZeneca Plc, but investors in the U.S. drugmaker say it can tolerate a little more rejection before going hostile with the deal. AstraZeneca turned down a sweeten...

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