Yolanda Sanz has contributed to the News & Views section of Nature with the publication of the article 'Turning cooperative bacteria into probiotics for human health ' (doi: 10.1038/d41586-023-02407-w). This contribution discusses the challenges of developing a next-generation of probiotics formed by anaerobic intestinal bacteria, which interact with each other and with the human body, providing health benefits. This paper reviews the one recently published by Khan et al (doi: 10.1038/s41586-023-06378-w) where they study a combination of two intestinal bacteria Leer más