A subset of events starting from notification by the Chinese CDC on 3 Jan 2020 through airport screening, the first Federal quarantine order in 50 years, declaration of a national health emergency, restrictions on travel from China, and the activation of US Military global pandemic response plans on 1Feb2020.
To scroll this timeline click (or, on the iPad, tap) in it and drag vertically or horizontally. To view sources and details for an event click (tap) thethat appears to the right of an event when you hover over (tap) it.