**About the Editor**

**Lorenzo Drago** is a professor of clinical microbiology at the University of Milan. He was the director of the laboratory medical hubs in two large Italian hospitals. He is a project leader—at the Italian and European levels—of microbiological networks focusing on microorganisms and infections, antibiotic resistance, and microbiota and probiotics. Prof. Lorenzo Drago is an international leader in laboratory diagnosis, molecular technology, next-generation sequencing systems, hospital infection control and management, antibiotic resistance, and microbiota studies. He is a co-founder of the World Association of Infection in Orthopedics and Trauma (WAIOT) and the former president of the International Society of Microbiota.

## **Preface to "Skin-Gut-Breast Microbiota Axes"**

The "skin-gut-breast microbiota axis" comprises the network of connections—involving multiple biological systems—that allows for relational communication between the gut-skin axis, breast bacteria, and our body. This system is finely regulated, and it is crucial for maintaining the homeostasis of skin integrity, the gastrointestinal tract, and the central nervous system of humans. This network of microorganisms is known to be relevant to our health. This book describes the mechanisms of, opportunities for, and approaches to studying this system and how to harness it to improve human health.

> **Lorenzo Drago** *Editor*

*Article*
