The Biden administration is expected to take steps in the coming days to toughen testing requirements for international travelers to the U.S., including both vaccinated and unvaccinated people, amid the spread of the new omicron variant of the coronavirus.
The precise testing protocols were still being finalized ahead of a speech by President Joe Biden planned for Thursday on the nation's plans to control the COVID-19 pandemic during the winter season, according to a senior administration official who said some details could still change. Among the policies being considered is a requirement that all air travelers to the U.S. be tested for COVID-19 within a day of boarding their flight. Currently those who are fully vaccinated may present a test taken within three days of boarding.
“CDC is evaluating how to make international travel as safe as possible, including pre-departure testing closer to the time of flight and considerations around additional post-arrival testing and self-quarantines,” Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Tuesday.
The official, who spoke on the condition of anonymity to discuss the administration's plans before the announcement, said options under consideration also include post-arrival testing requirements or or even self-quarantines.
The expected move comes just weeks after the U.S. largely reopened its borders to fully vaccinated foreign travelers on Nov. 8.
Much remains unknown about the new variant, which has been identified in more than 20 countries but not yet in the U.S., including whether it is more contagious, whether it makes people more seriously ill, and whether it can thwart the vaccine. Dr. Anthony Fauci the top U.S. infectious disease expert, said more would be known about the omicron strain in two to four weeks as scientists grow and test lab samples of the virus.
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