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Nature 421, 877 (27 February 2003) | doi:10.1038/421877b

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Mixed results win HIV vaccine a guarded response

Hannah Hoag

Statisticians are urging caution over intriguing results from clinical trials of an HIV vaccine, which suggest that some ethnic groups may benefit from the drug.Biotechnology company VaxGen announced the results of its AIDSVAX trials on 24 February.