To combat the spread of the new omicron COVID-19 variant, the Centers for Disease Control and Prevention are tightening testing requirements for international travelers.
Currently, air travelers to the United States who haven't recently recovered from the virus – including U.S. citizens – must take a negative viral test before boarding their flight, with fully vaccinated travelers required to take it no more than three days before departure.
But the CDC said Tuesday that it is "working to modify" the global testing order to give all international air travelers just one day to take a pre-departure test.