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"

To cite this section
MLA style: The Nobel Prize in Physiology or Medicine 2015. NobelPrize.org. Nobel Prize Outreach 2025. Fri. 5 Dec 2025. <https://www.nobelprize.org/prizes/medicine/2015/summary/>

Go to the top of the page

Nobel Prizes and laureates

Nobel Prizes 2025

Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 14 laureates' work and discoveries range from quantum tunnelling to promoting democratic rights.

See them all presented here.

Illustration

Explore prizes and laureates

Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.