A drug called simnotrelvir speeds up recovery from mild to moderate COVID-19. Plus, an algorithm that is as good at geometry as maths-Olympiad gold medallists and new evidence challenges claim that the Black Death shaped the human genome. A drug called simnotrelvir speeds up recovery from mild to moderate COVID-19. Plus, an algorithm that is as good at geometry as maths-Olympiad gold medallists and new evidence challenges claim that the Black Death shaped the human genome.