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The bird flu vaccine is made with eggs. That has scientists worried.
The spread of an avian flu virus in cattle has again brought public health attention to the potential for a global pandemic. Fighting it would depend, for now, on 1940s technology that makes vaccines from hens' eggs.
The spread of an avian flu virus in cattle has again brought public health attention to the potential for a global pandemic. Fighting it would depend, for now, on 1940s technology that makes vaccines from hens' eggs.
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