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Photo: NIKLAS HALLE'N / Getty Images

Anyone flying to the United States must test negative for the coronavirus before boarding their flight under a policy announced Tuesday by the Centers for Disease Control and Prevention.

Why it matters: With cases surging in the U.S., and new, more contagious variants emerging in other countries, the CDC says pre-flight testing will help slow the spread of the virus until the American public is fully vaccinated.

  • The new policy, which takes effect Jan. 26, expands an order implemented last month to require negative tests from travelers from the U.K.

How it works: Before departure to the U.S., air passengers are required to obtain a viral test (to test for current infection) within three days of departure.

  • They must provide paper or electronic documentation of their lab result.
  • The CDC also recommends getting tested again 3-5 days after arrival, and isolate for 7 days post-travel.
  • As an alternative, individuals may provide documentation that they've recovered from COVID-19.

Go deeper: Even with vaccine, COVID tests will be the passport to travel in 2021

Go deeper

Jan 30, 2021 - World

Science helps New Zealand avoid another coronavirus lockdown

New Zealand Prime Minister Jacinda Ardern (L) visits a lab at Auckland University in December. Photo: Phil Walter/Getty Images

New Zealand has avoided locking down for a second time over COVID-19 community cases because of a swift, science-led response.

Why it matters: The Health Ministry said in an email to Axios Friday there's "no evidence of community transmission" despite three people testing positive after leaving managed hotel isolation. That means Kiwis can continue to visit bars, restaurants and events as much of the world remains on lockdown.

Updated 22 mins ago - World

Death toll mounts as fighting between Israel and Hamas intensifies

Palestinian Muslims exchange wishes for Eid al-Fitr, marking the end of the fasting month of Ramadan, near a razed building in the northern Gaza Strip town of Beit Lahia, on May 13. Photo: Majdi Fathi/NurPhoto via Getty Images

At least 109 Palestinians and seven people in Israel have been killed since recent fighting between Israel's military and Hamas began Monday.

The big picture: Israel began massing troops on its border with Gaza on Thursday, launching attacks from the air and ground as Hamas continued to fire rockets into Israel.