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Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

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Illustration: Aïda Amer/Axios

New variants of the coronavirus circulating globally appear to increase transmission and are being closely monitored by scientists.

Driving the news: The highly contagious variant B.1.1.7 originally detected in the U.K. could become the dominant strain in the U.S. by March if no measures are taken to control the spread of the virus, the Centers for Disease Control and Prevention said Friday.

Why it matters: Countries are being overwhelmed by surges in cases that have led to border closures, quarantines and more aggressive pushes for the public to get vaccinated. So far, the variants do not appear to be resistant to the existing vaccines or cause more severe disease.

The state of play: Public officials are tracking SARS-CoV-2 variants, including the B.1.1.7 variant detected in the U.K., the 501.V2 variant in South Africa and a newly discovered variant in Brazil.

The B.1.1.7 variant has been identified in about 45 countries, but nations without routine genetic surveillance, including the U.S., may not fully know the extent of the spread, sparking calls for increased monitoring.

  • Public Health England released a new study of B.1.1.7 that estimated the variant is 30% to 50% more transmissible than other forms of the virus.
  • 12 U.S. states have detected the B.1.1.7 variant. The CDC estimates it's linked to about less than half a percent of cases in the U.S. so far and isn't the dominant variant.

The 501.V2 variant is "a little bit more concerning regarding the possibility of interfering with some of the monoclonal antibodies," based on preliminary findings, top infectious disease expert Anthony Fauci told Axios last week.

  • The variant carries a number of mutations that show changes to some of the virus' spike protein, which experts say is cause for concern since the spike protein is what coronavirus uses to gain entry into human cells, BBC reports.

Japan’s Health Ministry detected a variant on Sunday after travelers returned from Brazil. There are still many unknowns, but scientists say it has 12 mutations and studies are underway into the efficacy of vaccines against the new variant.

  • Brazil's Health Ministry has asked Japan for information such as the genetic sequence of the new strain, according to the Japan Times.

The big picture: Viruses mutate, often without impacting the severity of disease or how the virus spreads. But sometimes mutations are consequential for public health and scientists say it's important to monitor them.

  • Both Pfizer and Moderna are in the process of testing their vaccines against the variants. Pfizer and BioNTech said Thursday the mutation N501Y found in both variants B.1.1.7 and 501.V2 was tested against their vaccine and found “no reduction in neutralization activity against the virus.”
  • But there are multiple mutations and more studies are underway.

What to watch: On Friday, CDC officials pushed back on reports of a U.S. variant of the virus, the New York Times reports.

  • “To date, neither researchers nor analysts at CDC have seen the emergence of a particular variant in the United States,” the CDC said.
  • The White House did not immediately respond to a request for comment.

The bottom line: Viruses mutate and evolve and the coronavirus is no different. So far, public health officials still say wearing a mask, socially distancing, testing and contact tracing, and hand washing are best practices for stopping the spread of COVID-19.

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 15 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Health: Coronavirus cases hold steady at 65,000 per day — CDC declares racism "a serious public health threat" — WHO official: Brazil is dealing with "raging inferno" of a COVID outbreak.
  2. Vaccines: America may be close to hitting a vaccine wall — Pfizer asks FDA to expand COVID vaccine authorization to adolescents — CDC says Johnson & Johnson vaccine supply will drop 80% next week.
  3. Economy: Treasury says over 156 million stimulus payments sent out since March — More government spending expected as IMF projects 6% global GDP growth.
  4. Politics: Supreme Court ends California's coronavirus restrictions on home religious meetings.
  5. World: Iran tightens COVID restrictions amid fourth wave of pandemic.
  6. Variant tracker: Where different strains are spreading.

Chauvin trial leaves cities, activists across America on edge

Illustration: Brendan Lynch/Axios

The impact of the Derek Chauvin trial is reverberating far beyond the walls of the downtown Minneapolis courtroom.

The state of play: With the trial set to enter its third week, activists across America are watching the proceedings unfold with heavy skepticism that what they perceive as justice will be served.