Update
As of 28 January, both the U.S. Centers for Disease Control (CDC) and U.S. State Department had issued "Level 3: Reconsider Travel" advisories for China based on the spread of the novel coronavirus (2019-nCoV) throughout the country. This is an escalation from previous warnings, which advised only against travel to the city of Wuhan and all of Hubei province, the epicenter of the outbreak.