This year’s Nobel Prize season begins on Monday with the award of the Nobel Prize in Physiology or Medicine. The Nobel Assembly at the Karolinska Institute in Stockholm will announce the winner at 11:30 am (0930 GMT) at the earliest. The award can go to a single winner or to two or three at the same time who, for example, have researched the same topic. Last year, the institute awarded the prize to Hungarian-born biochemist Katalin Karikó and US immunologist Drew Weissman for their work on mRNA vaccines against Covid-19. The year before, Leipzig-based Svante Pääbo, a Swedish scientist, was hon…