'Any foreign national who has traveled within China in the last 14 days will not be allowed to enter the United States, according to a proclamation from President Trump. The action is to prevent the spread of the new coronavirus, said US Secretary of Health and Human Services Alex Azar. Azar also said that he was declaring a public health emergency in the US.'
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Trump bans foreign nationals who have traveled to China from entering the US, January 31, 2020
Context(Global Emergency) - W.H.O. Declares Global Emergency as Wuhan Coronavirus Spreads