It was a global race that led to the largest mass vaccination campaign in American history. What comes after a COVID-19 vaccine? Track the Vax, a weekly podcast from MedPage Today, returns for Season 2 to continue to examine the "New Normal" brought about through the global vaccination effort, continued vaccine development, research and impact from the vaccine rollout. Hosted and produced by medical correspondent Serena Marshall, with Executive producer health journalist Lara Salahi this podcast is devoted to the science and a data driven look at what comes next.