Passage: Phage therapy soon became a boom, and a great hope in medicine. In 1924, 25 January, d'Hérelle received the honorary doctorate of the University of Leiden, as well as the Leeuwenhoek medal, which is only awarded once every ten years. The latter was especially important to him, as his idol Louis Pasteur received the same medal in 1895). The next year, he was nominated eight times for the Nobel prize, though he was never awarded one.

Question: What prize was d'Herelle nominated for 8 times in one year?
Nobel prize