美國正式封關！外國人14日內去過中國任何地方不得入關。

https://edition.cnn.com/asia/live-news/coronavirus-outbreak-01-31-20-intl-hnk/index.html

JUST IN: US imposing travel ban on foreign nationals who have been in China

The Trump administration announced a ban on foreign national travel for those who have been in China within the last 14 days, Health and Human Services Secretary Alex Azar announced Friday.

The United States, Azar said, is "temporarily suspending the entry into the United States of foreign nationals who pose a risk of transmitting the 2019 novel coronavirus."

Azar noted that any US citizen who has been in the Hubei Province in the last 14 days will be subject to up to 14 days of mandatory quarantine upon return to the United States. US citizens returning from the rest of mainland China who have been there in the last 14 days will undergo screening at US ports of entry and up to 14 days of self-monitoring.

The ban will be in effect beginning at 5 p.m. ET Sunday.

The basis for the temporary ban, Dr. Anthony Fauci told reporters, is “the unknown of the aspects of this particular outbreak."