AUTHOR=Costantini Claudio , Bellet Marina M. , Renga Giorgia , Stincardini Claudia , Borghi Monica , Pariano Marilena , Cellini Barbara , Keller Nancy , Romani Luigina , Zelante Teresa TITLE=Tryptophan Co-Metabolism at the Host-Pathogen Interface JOURNAL=Frontiers in Immunology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2020.00067 DOI=10.3389/fimmu.2020.00067 ISSN=1664-3224