The United States is now requiring anyone entering the country from the United Kingdom to test negative for COVID-19 before they board the plane in the U.K. Refuse, and you won’t be allowed to board.
The reason for the new restriction is because of the variant of coronavirus that’s been reported in the U.K., which appears to spread more easily than the first virus strain. Passengers must test negative within three days of their flight. News reports said at least 40 countries have imposed some sort of travel ban on the U.K. since the new variant was found.
SOURCE: Fox News December 25, 2020