Most people who die from cancer are killed by cells that have spread through their body, but we know relatively little about how they spread. Now a team has genetically sequenced the secondary tumours of 10 women who died from breast cancer, and found that there are usually just two or three waves of migration from the original tumour.
Original article: https://www.newscientist.com/article/2204659-breast-cancer-spreads-through-the-body-in-just-two-or-three-waves/
