TWiM explains the discovery of hotspots of genetic variation containing reservoirs of anti-phage systems in E. coli phages and their parasitic satellites, and pathogen desiccation tolerance promoted by hydrophilins. Become a patron of TWiM. Links for this episode Phage and satellite antiviral systems (Cell Host Micro) Hydropilins promote desiccation tolerance (Cell Host Micro) Letters read on TWiM 265 TWiM Listener survey Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv