The travel industry is bracing for more restrictions. The changes come as the number of omicron cases rises. That’s the latest COVID variant that’s popping up in the U.S. Texas A&M Epidemiologist Dr. Rebecca Fischer says the bottom line is that travel restrictions work. Everyone entering the country, including returning Americans, must now get a Covid test within 24 hours before boarding flights. That includes those vaccinated. And the airline mask mandate has been extended through mid-March.