Infectious diseases have largely been replaced by chronic diseases such as diabetes, heart disease and cancer in the Western world. However, the COVID-19 pandemic has shown us that humans are still at significant risk from microbial-diseases. In this episode, Dr. Ruairi Robertson speaks with Prof. Brett Finlay from University of British Columbia, one of the world’s leading experts on infectious diseases. Prof. Finlay discusses his career studying infectious microbes and how this led him to...

When you hear the phrase ‘gut microbiome’, you most often think about bacteria. However, a huge proportion of your intestinal microbes are viruses, archaea and fungi. These other microbes however, have been studied in much less detail and we know less about what they are doing to your body. In this episode, Dr. Ruairi Robertson speaks with Dr. Marie Claire Arrietta from University of Calgary, a leading researcher on fungal microbiomes. She discusses how gut fungi interact with the immune...

Colorectal cancer is one of the most common cancers and cancer deaths worldwide and its rates are increasing in many countries around the world, especially in younger adults. Emerging evidence points to a role of certain gut microbes in the progression of colorectal cancer by acting as toxins to gut cells. On the other hand, other microbes have been identified as potentially protective against colorectal cancer. In this episode of Biomes, Dr. Ruairi Robertson speaks with Prof. Wendy Garrett...

Kombucha, kefir, sauerkraut, kimchi… fermented foods such as these have suddenly appeared on the shelves and menus around the world. Much of this is due to our increasing knowledge about our gut microbiomes. But what is the scientific evidence behind fermented foods? Do they actually change our gut microbiomes? Do their microbes survive transit through the gastrointestinal tract? Should we all be eating more fermented foods? In this episode, Dr. Ruairi Robertson speaks to Prof. Paul Cotter...

Did you know that humans emit about 37 million bacteria every hour? Your entire surroundings, from the air you breathe to the walls of your house, are populated by a vast mixture of microbes. But to what extent to these microbes colonize you and affect your health? In this episode, Dr. Ruairi Robertson speaks with Prof. Jack Gilbert about the microbes in our environment and how they interact with humans. Prof. Gilbert is the Charles Darwin of the microbiome field, studying microbes all over...

Welcome back to Season 2 of Biomes! This season will include some even more fascinating discussions on the latest developments in human microbiome research. Dr. Ruairi Robertson will speak to some of the world’s leading microbiome researchers about everything from fermented foods to cancer microbiomes and microbiomes in space. This introductory episode will give a taster of all of the topics that will be discussed in Season 2. Biomes Season 2 is being produced in conjunction with Microbiome...

In this final episode of the series, I speak to Prof. Susan Lynch from University of California San Francisco. We discuss the hygiene hypothesis, which suggests that early life exposure to infections may protect against allergy and asthma, and how this may be relevant to the early life gut microbiome.

Through our diets, hygiene practices, overuse of antibiotics and other aspects of our Westernised diets, we are losing much of the vast diversity of our gut microbiomes. In this episode for World Microbiome Day, I speak to Prof. Maria Gloria Dominguez Bello who has conducted fascinating work on the gut microbiomes of uncontacted Amerindian Tribes in the Amazon Jungle, who have amazingly diverse microbiomes. We also discuss her pioneering work on vaginal seeding in C-section births and her...

In this episode I speak to Dr. Lindsay Hall to studies the gut microbiomes of babies. She examines how preterm babies are more prone to infections and how we may be able to optimise their gut microbes in order to prevent and fight infections. We discuss the details of babies' immune systems, gut microbes and the new controversial method of 'vaginal seeding' during C-section births.

Fecal transplants are one of the hottest, if not stomach-curling, topics in the field of the microbiome at the moment. They are extremely successful treatments for recurrent C. Diff infection. In this episode I speak with Dr. Majdi Osman who is the Clinical Programme Director of OpenBiome, a non-profit stool bank whom screen, store and distribute stool samples to hospitals all around the US for fecal transplants. We discuss the background of fecal transplants, the day-to-day difficulties of...

In this episode of Biomes, I speak with Professor Gregor Reid of the the University of Western Ontario and the Lawson Health Research Institute, one of the foremost researchers on probiotics. We discuss his research into UTIs, preterm birth, probiotic controversies and the future of beneficial microbes to fight disease.  

Have you ever had a gut feeling? Or butterflies in your stomach? Fascinating evidence now shows us that our intestines and brains and intricately linked through a number of physical and biochemical pathways and that our gut microbes are critical to these interactions. In this episode of Biomes, I speak with Professor Ted Dinan from University College Cork, one of the pioneers in the field of the gut-brain axis. We talk about the link between stress and infection, the latest knowledge around...

Welcome to the Biomes Podcast! As a human being, you are not a single organism but a thriving ecosystem home to trillions of invisible, living microbes. These microbial jungles within you and upon you are critical for your health and survival and may influence everything from your risk of cancer to your sexual attractiveness. In this introductory episode, I introduce myself, the microbiome and this podcast. Enjoy!