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Healthcare workers collecting samples at a coronavirus testing site in Denver in November. Photo: Hyoung Chang/MediaNews Group/The Denver Post via Getty Images

Colorado's health department discovered the new variant of the coronavirus that may be more transmissible, Gov. Jared Polis announced on Tuesday.

Why it matters: It's the first known U.S. case of the variant, which was initially discovered in the United Kingdom.

  • A non-peer reviewed study by the Centre for Mathematical Modelling of Infectious Diseases at the London School of Hygiene and Tropical Medicine found that the variant is 56% more transmissible than other strains.
  • The British government previously warned that a new variant could be up to 70% more transmissible.

Of note: There is thus far no evidence that the new variant 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.

What they're saying: "The health and safety of Coloradans is our top priority and we will monitor this case, as well as all COVID-19 indicators, very closely," Polis tweeted Tuesday.

  • According to Polis’ office, the case involves a man in his 20s who has no travel history.
  • The man is currently in isolation, and public health officials are doing a “thorough investigation,” the governor’s office added.

The big picture: Dozens of countries banned travel from the U.K. after it discovered the variant.

  • Japan announced last week that it would temporarily ban non-resident foreign nationals from entering the country starting on Dec. 28 after it discovered its first case of the new variant.

Go deeper: What you need to know about the coronavirus mutation

Go deeper

Updated 15 hours ago - World

Portugal president wins second term, but far-right gains as COVID cases spike

President Marcelo Rebelo de Sousa at a polling station in Celorico de Basto, Portugal, on Sunday. The election took place with strict social distancing rules and other coronavirus precuatins in effect. Photo: Octavio Passos/Getty Images

Portugal's center-right President Marcelo Rebelo de Sousa said after being re-elected with 61% of the vote for a second term Sunday his priority will be to "combat the pandemic," per Reuters.

Why it matters: Portugal is currently on lockdown with the highest seven-day COVID-19 average per 100,000 and some of the highest death rates in the world, according to Johns Hopkins.

Updated 19 hours ago - World

Mexican President López Obrador tests positive for coronavirus

Mexican President Andrés Manuel López Obrador during a press conference at National Palace in Mexico City, on Wednesday. Photo: Ismael Rosas/Eyepix Group/Barcroft Media via Getty Images

Mexican President Andrés Manuel López Obrador announced Sunday evening that he's tested positive for COVID-19.

Driving the news: López Obrador tweeted that he has mild symptoms and is receiving medical treatment. "As always, I am optimistic," he added. "We will all move forward."

Dan Primack, author of Pro Rata
9 mins ago - Economy & Business

Scoop: Red Sox strike out on deal to go public

Illustration: Sarah Grillo/Axios

The parent company of the Boston Red Sox and Liverpool F.C. has ended talks to sell a minority ownership stake to RedBall Acquisition, a SPAC formed by longtime baseball executive Billy Beane and investor Gerry Cardinale, Axios has learned from multiple sources. An alternative investment, structured more like private equity, remains possible.

Why it matters: Red Sox fans won't be able to buy stock in the team any time soon.