AUTHOR=Di Simone Nicoletta , Barnea Eytan Robert , Mueller Martin TITLE=Editorial: Immunological Role of the Maternal Microbiome in Pregnancy JOURNAL=Frontiers in Immunology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.703009 DOI=10.3389/fimmu.2021.703009 ISSN=1664-3224