The human microbiome consists of viruses, fungi, bacteria - even parasites and protozoa - that live on and in our bodies. And today the microbiome is having a ‘scientific moment’. Researchers are testing its uses to improve health, and, as a therapeutic agent to treat everything from bloodstream infection to the ill effects of cancer treatment. In this episode of UHN's ‘Behind the Breakthrough’ leading Canadian microbiome research scientist Dr. Bryan Coburn explains how our understanding of the microbiome is growing exponentially, and the human clinical trials he’s conducting to determine if it can be a therapeutic tool to treat patients.