United Airlines announced on Thursday that it will join a group of airliners requiring passengers from the United Kingdom to provide proof of a negative coronavirus test within three days of departure.
United joins Delta Air Lines, Virgin, and British Airways in adopting a policy that is aimed at slowing the spread of the coronavirus following reports of a new mutation of the disease in the U.K. that is spreading at a quick pace and worrying health officials.
More than 40 countries across Asia, Europe, and South America have barred incoming flights from the U.K. following the announcement of the new strain.
United provides service between London Heathrow Airport and several destinations throughout the United States.
Concerns over the safety of passengers have been heightened recently following the death of a man aboard a United flight who later tested positive for the virus.
Passengers 5 years of age and older can make an appointment at Heathrow Airport to be tested prior to takeoff.