April 7: https://web.archive.org/web/20200408133015/https://www.whitehouse.gov/briefings-statements/remarks-president-trump-vice-president-pence-members-coronavirus-task-force-press-briefing-april-7-2020/ April 15: https://www.whitehouse.gov/briefings-statements/remarks-president-trump-vice-president-pence-members-coronavirus-task-force-press-briefing-26/
How the Coronavirus Pandemic Unfolded: a Timeline
https://www.nytimes.com/article/coronavirus-timeline.html