Recombinant poxviruses expressing soluble interleukin–1 receptors show that interleukin-1 β is the predominant pyrogen during poxvirus infection.
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Licinio, J., Wong, ML. Interleukin 1β and fever. Nat Med 2, 1314–1315 (1996). https://doi.org/10.1038/nm1296-1314
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DOI: https://doi.org/10.1038/nm1296-1314