A single course of antibiotics can cause lingering changes in gut microbes Nature, Published online: 16 March 2026; [doi:10.1038/d41586-026-00769-5][1] Microbial diversity loss seen after a course of some commonly prescribed antibiotics can persist for years. [1]: https://www.nature.com/articles/d41586-026-00769-5 https://www.nature.com/articles/d41586-026-00769-5