* Timeline summaries at the top of the page come from a variety of sources:, including The American Journal of Managed Care COVID-19 Timeline (https://www.ajmc.com/view/a-timeline-of-covid19-developments-in-2020), the Just Security Group at the NYU School of Law (https://www.justsecurity.org/69650/timeline-of-the-coronavirus-pandemic-and-u-s-response/), the “10 Things,” daily entries from The Week (theweek.com), as well as a variety of newspapers and television programs.