
On Jan. 31, 2020, with six confirmed cases of a new coronavirus in the U.S., a group of federal health officials gathered somberly at the lectern at the White House and declared a public health emergency.
"Beginning at 5:00 p.m. EST Sunday, February the 2nd, the United States government will implement temporary measures to increase our abilities to detect and contain the coronavirus proactively and aggressively," announced then-Health and Human Services Secretary Alex Azar.