On Thursday, the State Department raised its global health advisory to level four, its highest level. The new advisory encourages all U.S. citizens to avoid international travel due to the global spread and impact of the Wuhan coronavirus. U.S. citizens who are currently abroad are encouraged by the State Department to immediately return to the United States, if possible, or prepare to remain abroad for an indefinite period of time. U.S. citizens who live abroad are also encouraged to avoid international travel at this time. "If you chose to travel internationally," the State Department warns, "your travel plans may be...