TWiV revisits Brazil’s rejection of Sputnik vaccine, examines influenza transmission via the air from the nasal epithelium of ferrets, and a history of accidental releases of polioviruses and their relevance for eradication of poliomyelitis.

Daniel Griffin provides a clinical report on COVID-19, then Amy joins us to discuss the 2020 Chemistry Nobel Prize for gene editing using CRISPR/Cas9, continuing circulation of poliovirus in Afghanistan, inborn errors of interferon in patients with severe COVID-19, and listener questions.

At Aarhus University in Denmark, Vincent speaks with Trine Mogensen, Søren Paludan, Ole Søgaard, and Madalina Carter-Timofte about their careers and their work on sensing herpesviral DNA, immunodeficiencies that predispose to severe viral infections, and the path to a cure for HIV/AIDS.

Vincent speaks with Julius about his long career in virology, including his crucial work as part of the team at the University of Pittsburgh that developed the Salk inactivated poliovirus vaccine.