Immune reminisces about a year in COVID-19 immunology, Steph’s receiving the Pfizer vaccine, and answers to listener questions about a challenge study with common cold CoVs, T cell exhaustion, how CD4 T cells control infections, and more. Hosts: Vincent Racaniello, Stephanie Langel, Cynthia Leifer, and Brianne Barker Subscribe (free): iTunes, Google Podcasts. RSS, email Become a patron of Immune! Links for this episode Immune response during common cold CoV infection (Epidem Infect) Summary of diagnostic tests (NAS) Letters read on Immune 40 Time stamps by Jolene. Thanks! Music by Steve Neal. Immune logo image by Blausen Medical Send your immunology questions and comments to immune@microbe.tv