Netcast TWiV 218: Monkeys turning valves and pushing buttons February 3, 2013 Tagged as: antibody, cancer, endogenous retrovirus, erv, germline, murine leukemia virus, RAG mouse, reactivation, TLR, toll-like receptor, tumor, viral, virology, virus Vincent, Alan, and Welkin discuss how endogenous retroviruses in mice are held in check by the immune response.