Suspension of Entry as Immigrants and Nonimmigrants of Persons Who Pose a Risk of Transmitting 2019 Novel Coronavirus
January 31, 2020
Entry of aliens who were present in China, excluding the Special Autonomous Regions of Hong Kong and Macau, within 14 days prior to their arrival at the port of entry in the United States is suspended, per Presidential Proclamation. If you reside in China, have traveled to China recently, or intend to travel to China prior to your planned trip to the United States, we recommend you postpone your visa interview appointment until 14 days subsequent to your departure from China.
Source & Full Text
The full text of this Presidential Proclamation can be read on the White House website.