The TWiM team ventures into preprint space with an analysis of type VI secretion across human gut microbiomes, and provide insight into urinary tract infection: how bladder exposure to a member of the vaginal microbiota triggers E. coli egress from latent reservoirs. Hosts:  Vincent Racaniello, Michael Schmidt, Michele Swanson and Elio Schaechter. Subscribe to TWiM (free) on iPhone, Android, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Become a patron of TWiM. Links for this episode ASM Microbe 2017 TWiM Live from ASM Microbe 2017 Landscape of type VI secretion (BioRxiv) Type VI secretion structure (jpg) Activation of dormant E. coli in urinary tract infection (PLoS Path) Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv