The TWiV team travels to Texas A&M University, home of the Center for Phage Technology, where they speak with Ry Young and Jason Gill about their work on viruses that infect bacteria.

At the Medical College of Wisconsin, Vincent talks with current and former members of the Department of Microbiology and Immunology about their work and their careers.

Ted and Welkin inform the TWiV team how the evolution of ancient retroviruses can be inferred by their sequences in the genomes of modern mammals, and join in a discussion of virus dispersal during different methods for drying hands.