An article on page 748 of this issue raises the question whether remaining stocks of smallpox virus should be physically destroyed. That option, chiefly symbolic, should not be followed — just yet.
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End of the line for smallpox virus. Nature 366, 711 (1993). https://doi.org/10.1038/366711a0
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DOI: https://doi.org/10.1038/366711a0