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Nature 434, 943 (21 April 2005) | doi:10.1038/434943a; Published online 20 April 2005
Heightened security after flu scare sparks biosafety debate
Erika Check
US scientists who work with deadly strains of influenza are facing tighter restrictions on how they handle the viruses.The rule changes follow last week's revelation that a 1957 pandemic flu strain was shipped to thousands of labs around the world in recent months.
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