Airline stocks slipped Monday as a highly contagious mutation of Covid-19 found in the U.K. and South Africa prompted travel restrictions by more than two dozen nations.
Countries from Italy to India to El Salvador have banned flights from the U.K. or travelers who have been in that country after officials in Britain sounded the alarm about what they said was a quick-spreading strain of the virus. Canada late Sunday said it would suspend passenger flights from the U.K. for 72 hours.
