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COVID-19 vaccination delays could bring more virus variants, impede efforts to end pandemic

New covid-19 strains: What scientists know about coronavirus variants

New covid-19 strains: What scientists know about coronavirus variants Premium Vials of Covishield, AstraZeneca-Oxford s Covid-19 coronavirus vaccine are pictured inside a lab where they are being manufactured at India s Serum Institute in Pune on January 22, 2021. (Photo by Punit PARANJPE / AFP) (AFP) . Updated: 23 Jan 2021, 02:01 PM IST The Wall Street Journal New versions of the novel coronavirus are spreading across the globe. Researchers fear the new lineages may spread more easily and one may be more deadly. Share Via Read Full Story Scientists around the world are scrambling to learn more about previously unknown variants of the coronavirus that seem to spread from person to person more readily than other versions of the Covid-19-causing pathogen including one variant that may also be more deadly.

The Coronavirus Is Evolving the Same Mutations Around the World

A Troubling New Pattern Among the Coronavirus Variants Sarah Zhang © Simoul Alva For most of 2020, the coronavirus that causes COVID-19 jumped from human to human, accumulating mutations at a steady rate of two per month not especially impressive for a virus. These mutations have largely had little effect. But recently, three distinct versions of the virus seem to have independently converged on some of the same mutations, despite being thousands of miles apart in the United Kingdom, South Africa, and Brazil. (A mutation is a genetic change; a variant is a virus with a specific set of mutations.) The fact that these mutations have popped up not one, not two, but now three times that we know of in variants with unusual behavior suggests that they confer an evolutionary advantage to the virus. All three variants seem to be becoming more common. And all three are potentially more transmissible.

Why the New Covid-19 Variants Could Be More Infectious

Why the New Covid-19 Variants Could Be More Infectious 8 countries in the @WHO Europe region have now identified the new COVID-19 variant VOC-202012/01 (AP)Premium . Updated: 17 Jan 2021, 12:37 PM IST The Wall Street Journal Mutations in the virus’s appendage have created potentially more infectious versions of the pathogen, including one currently circulating around the world Share Via Read Full Story As viruses replicate, they change, or mutate. Some mutations give these viral variants an edge, such as being better able to latch on to and infect human cells. That’s what scientists think happened with the coronavirus variant that swept through the U.K. recently and which is now showing up in states across the U.S.

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