Jon Yewdell returns to TWiV to discuss how antibodies are made, vaccination against SARS-CoV-2, antigenic variation of the virus, booster shots, and more. Hosts: Vincent Racaniello, Dickson Despommier, Rich Condit, and Brianne Barker Guest: Jon Yewdell Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Jon Yewdell on TWiV 208, 467, 597, 620 Letters read on TWiV 857 Timestamps by Jolene. Thanks! Weekly Picks Jon – The Premonition by Michael Lewis Dickson – Nature photographer of the year 2021 Brianne – Should BioBank Volunteers Be Warned About Mutations? Rich – Czech singer Hanka Horká dies after intentionally getting infected by the coronavirusand Dena Dietrich Dies at 91 Vincent – Cuore di Cioccolato Listener Picks Bronwen – Schools must stay open John – Pandemic humor Intro music is by Ronald Jenkees Send your virology questions and comments to [email protected]