Arrieta spent five years working in microbiologist Brett Finlay’s lab. She combined her knowledge of microbes and immunology to lead a major clinical study on the role of the microbiota in asthma. She played a critical part in building the bioinformatics techniques needed to analyze the microbiota. She demonstrated that certain species of the intestinal microbiota from three-month-old children determine the risk of that child to succumb to asthma later in life.
Recruited from:University of British Columbia, Vancouver, BC
Research focus:Leading a cohort study of the next 1,000 newborns in Alberta called the BLOOM Study.
Background:Marie-Claire Arrieta is the co-author of Let Them Eat Dirt. This book for parents explores how the microbiome influences childhood development. It also explains how microbial alterations can lead to several immune-mediated diseases. She has been published in leading scientific journals such as Gut, PNAS, and Science Translational Medicine.