Nobel Prize in Physiology or Medicine 2015

William C. Campbell

© Nobel Prize Outreach. Photo: A. Mahmoud

Prize share: 1/4

Satoshi Ōmura

© Nobel Prize Outreach. Photo: A. Mahmoud

Prize share: 1/4

Youyou Tu

© Nobel Media AB. Photo: A. Mahmoud

Prize share: 1/2

The Nobel Prize in Physiology or Medicine 2015 was divided, one half jointly to William C. Campbell and Satoshi Ōmura "for their discoveries concerning a novel therapy against infections caused by roundworm parasites" and the other half to Tu Youyou "for her discoveries concerning a novel therapy against Malaria"

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Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 10 laureates' work and discoveries range from optogenetics to efforts to promote peace and international law.

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Nobel Prizes 2026

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