AUTHOR=Venkova Tatiana , Yeo Chew Chieng , Espinosa Manuel TITLE=Editorial: The Good, The Bad, and The Ugly: Multiple Roles of Bacteria in Human Life JOURNAL=Frontiers in Microbiology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2018.01702 DOI=10.3389/fmicb.2018.01702 ISSN=1664-302X