Testing H1N1 flu vaccine amid supply questions
WASHINGTON: Attention is shifting to the world's five leading flu vaccine makers: How fast are they really producing H1N1 flu vaccine, and just how do they plan to test that it works?
A meeting yesterday of the Food and Drug Administration's scientific advisers offers the first in-depth public progress report since US scientists delivered the novel virus to manufacturers and asked them to turn it into usable vaccine.
They've succeeded to a degree.
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