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Published online 15 November 2002 | Nature | doi:10.1038/news021111-13

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Smallpox strategies simulated

Models call for vaccinations before bioterror attack.

Pre-emptive vaccination of healthcare workers is the key to thwarting a deadly smallpox epidemic, according to the latest simulation1.

A previous study concluded that the best strategy would be to vaccinate the entire US population after an attack2.

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