B. Brett Finlay (Author) B. Brett Finlay, PhD, is Professor of Microbiology at the University of British Columbia and has published over four hundred and fifty articles on microbes and how bacterial infections work. A founder of the biotech companies Inimex, Vedanta, and Microbiome Insights, Brett is Officer of the Order of Canada – the highest Canadian civilian recognition. He lives in Vancouver, BC, with his wife, who is a pediatrician, and has two grown children. Marie-Claire Arrieta (Author) Marie-Claire Arrieta, PhD, has been studying how intestinal alterations lead to several immune diseases since 2007, combining her knowledge of microbes and immunology to lead a major clinical study on the role of the microbiota in asthma. A mother of two, Arrieta is a tireless advocate of using scientific knowledge to improve the health of children.