"The Department of State has upgraded our Travel Advisory for
China to Level 4: Do Not Travel due to novel coronavirus first identified in Wuhan, Hubei province.
Those currently in China should attempt to depart by commercial means."
"We strongly urge U.S. citizens remaining in China to stay home as much as possible and limit contact with others, including large gatherings. Consider stocking up on food and other supplies to limit movement outside the home.
U.S. citizens remaining in China should follow the U.S. Centers for Disease Control and Prevention (CDC) and Chinese health authorities’ guidance for prevention, signs and symptoms, and treatment (www.cdc.gov/coronavirus/2019-nCoV/summary.html)."
I see the State Department urged citizens to leave in an advisory posted on February 8. Message here: