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Lorries parked on the highway after the Port of Dover was closed and access to the Eurotunnel terminal suspended. Photo: Steve Parsons/PA Images via Getty Images

At least 31 countries, including 18 in the neighboring European Union, have banned travel from the United Kingdom after the British government warned that a new variant of the coronavirus could be up to 70% more transmissible.

Why it matters: Supply chains are being disrupted just days before the U.K. is set to end the Brexit transition period without a free trade agreement with the EU — its largest and closest trading partner. A no-deal Brexit could cause massive damage to a British economy that's already been ravaged by the pandemic.

Driving the news: U.K. Prime Minister Boris Johnson is set to hold an emergency meeting of advisers after France announced Sunday that it would close its borders for 48 hours, blocking off ports that account for roughly 20% of the U.K.’s trade in goods, according to AP.

  • The government has urged people not to travel to the county of Kent, which hosts many of the cross-channel ports used for access to the European continent and sees about 10,000 freight trucks a day through the Dover-Calais crossing.
  • European Union officials will meet Monday to discuss a coordinated response to the new coronavirus variant, which has been detected in Denmark, Italy and the Netherlands, according to the BBC.

Between the lines: There is thus far no evidence that the new variant of coronavirus is more deadly — only that it appears more transmissible. There is also no evidence that COVID-19 vaccines will be less effective against the new variant.

  • The discovery of the apparent increase in transmissibility forced Johnson to U-turn this weekend on a plan to soften coronavirus restrictions for five days to allow Brits to travel to see family and friends over Christmas.
  • Just days after Johnson said cancelling Christmas would be "inhuman," the government ordered London and southeast England — where Health Secretary Matt Hancock has said the new variant is "getting out of control" — to enter into the strictest form of lockdown.

The big picture: The significant disruptions to travel and trade come less than two weeks before the end of the Brexit transition period on Dec. 31.

  • A no-deal Brexit with the EU, which negotiators now see as "very likely," had already been expected to cause mass chaos at the ports that have now been blocked off due to coronavirus-related border closures.
  • Freight routes between England and France were already heavily congested due to pre-Brexit stockpiling by British companies. Images on Sunday showed trucks backed up for miles.
  • Critics of Johnson's government have demanded that he ask for an extension to the transition period, fearing the dueling crises of a no-deal Brexit and an out-of-control pandemic could be catastrophic for the British economy. Johnson, who was elected on his promise to deliver Brexit, has consistently ruled out an extension.

Go deeper: U.K., EU brace for no-deal Brexit cliff as trade talks falter

Go deeper

Jan 29, 2021 - Health

Ex-CDC director Tom Frieden on the next COVID-19 vaccines

Americans fortunate enough to receive COVID vaccines now, outside of clinical trials, are getting shots made by either Pfizer or Moderna. But newly released data from Novavax and Johnson & Johnson suggests that more vaccines could be on the way, with J&J's requiring a single dose.

Axios Re:Cap digs into the news and why it matters with Tom Frieden, former head of the CDC, as COVID-19 variants spread globally.

Jan 29, 2021 - Health

J&J says its one-shot vaccine is 66% effective against moderate to severe COVID

Photo: Thiago Prudêncio/SOPA Images/LightRocket via Getty Images

Johnson & Johnson announced Friday that its single-shot coronavirus vaccine was 66% effective in protecting against moderate to severe COVID-19 disease in Phase 3 trials, which was comprised of nearly 44,000 participants across eight countries.

Between the lines: The vaccine was 72% effective in the U.S., but only 57% effective in South Africa, where a more contagious variant has been spreading. It prevented 85% of severe infections and 100% of hospitalizations and deaths, according to the company.

Jan 29, 2021 - World

EU grants conditional approval of AstraZeneca vaccine

Photo: Sunil Ghosh/Hindustan Times via Getty Images

The European Commission on Friday granted conditional approval of the Oxford-AstraZeneca coronavirus vaccine for people 18 years and older.

Why it matters: This is the third vaccine to receive approval from the commission, coming hours after the Emergency Medicines Agency recommended its authorization.