Thousands of different bacterial species live within the human gut. Most are beneficial, while others can be harmful. A new study from an MIT-led team has revealed that these bacterial populations can remake themselves within the lifetime of their host, by passing genes back and forth. They also found for people in industrialized societies this happens at much higher rates.

Read the article: https://news.mit.edu/2021/microbiome-industrialized-gene-transfer-0331