4th Illinois Health Data Analytics Summit: Vaccination & Post-COVID Health Challenges, held 4/9/2021. View Part II here: https://mediaspace.illinois.edu/media/t/1_4683z2j0. Part I features the opening remarks, keynote speakers Dr. Bala Hota and Dr. Bruce Tromberg, and the first talk of the Data Science portion. View the full agenda here: https://healtheng.illinois.edu/summit-2021/.