U.S. health officials are mulling a requirement that airline passengers test negative for COVID-19 before traveling domestically, according to a Biden administration official. The administration is engaged in an “active conversation” with the Centers for Disease Control (CDC) and Prevention, Transportation Secretary Pete Buttigieg said during a recent interview on “Axios on HBO.” “What I can tell you is, it’s going to be guided by data, by science, by medicine, and by the input of the people who are actually going to have to carry this out,” Buttigieg added. The United States requires negative tests for all air passengers entering the country from a foreign nation. The CDC order, which went into effect on Jan. 26, requires passengers to get tested no more than 3 days before their flight departs and to present the negative result or documentation of having recovered from COVID-19 to the airline before boarding the flight. COVID-19 is …