The complex community of microbes residing in our gut, also known as the gut microbiota, is currently seen as an organ of vertebrate animals which has multiple functions such as contributing to food digestion and protecting the host from pathogens. Our lab is dedicated to the study of the commensal and pathogenic bacterial components of the gut microbiota, and their interactions with each other and the host. An important, secondary goal, is to utilize our knowledge to promote the wellbeing of humans and food animals, such as poultry.