AUTHOR=Sarmento Amelia TITLE=Editorial: Understanding Crohn’s Disease: Immunity, Genes and Microbes JOURNAL=Frontiers in Immunology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2017.00357 DOI=10.3389/fimmu.2017.00357 ISSN=1664-3224