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Published online 10 July 2002 | Nature | doi:10.1038/news020708-5

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Bioterror policy questioned

Model hints U.S. smallpox defence policy may be flawed.

A new study claims that the current US strategy for containing a deliberate release of smallpox could lead to tens of thousands of unnecessary deaths1.

The policy - to trace, vaccinate and quarantine all those infected and exposed - would be too little and take too long to protect a large metropolitan area such as New York.

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