A view of signage leading to one of the testing centers at Heathrow Airport on December 22, 2020 in London, England.

Joseph Okpako | Getty Images News | Getty Images

The United States will begin requiring people flying in from the U.K. to test negative for Covid-19 no more than 72 hours before departure, the CDC said in a late Thursday statement.

The statement said President Donald Trump will sign the order on Friday, Christmas Day. It will go into effect starting Monday.

Earlier this week, the U.K. said it identified a new strain of Covid-19 that appears to spread more quickly. Dozens of countries swiftly restricted travel from the U.K. in efforts to prevent the strain from entering their own borders.

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