Vincent and Alan meet up with Julie and Paul at the General Meeting of the American Society for Microbiology in Boston, to talk about their work on the pathogenesis of poliovirus and measles virus.

The TWiVmeisters answer listener email about the NEIDL, negative results, patenting MERS-coronavirus, human papillomavirus transmission, canine distemper virus, and much, much more.

Vincent, Alan, and Kathy reveal how a retrovirus in the human genome keeps embryonic stem cells in a pluripotent state, from where they can differentiate into all cells of the body.