The United States will require all airline passengers arriving from Britain to test negative for the coronavirus within 72 hours of their departure, the Centers for Disease Control and Prevention said on Thursday.
The move comes as a new highly transmissible variant of the virus, which first appeared in Britain, has led countries to seal their borders to travelers from there.
The new rule, which takes effect on Monday, will apply to Americans as well as foreign citizens, and will require passengers to show proof of a negative result on a genetic test, known as a P.C.R., or an antigen test.
“This additional testing requirement will fortify our protection of the American public to improve their health and safety and ensure responsible international travel,” the C.D.C. said in a statement.
Passengers will be required to“provide written documentation of their laboratory test result (in hard copy or electronic) to the airline,” the C.D.C. said, adding that “if a passenger chooses not to take a test, the airline must deny boarding to the passenger.”
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