Bacterial competition within host-associated polymicrobial communities shapes their composition, often with far-reaching consequences for human health. In this issue of Cell Host & Microbe, Perault et al. reveal how competition between two opportunistic pathogens could account for the epidemiology of chronic lung infections in people with cystic fibrosis.

中文翻译：

---

我的敌人：囊性纤维化肺中的细菌竞争

与宿主相关的微生物群落内部的细菌竞争影响了它们的组成，常常对人类健康产生深远的影响。在本期《细胞宿主与微生物》中，Perault等人。揭示了两种机会性病原体之间的竞争如何解释囊性纤维化患者慢性肺部感染的流行病学。