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Delta plus: ¿qué es esta ‘subvariante’? ¿cuáles son sus características? ¿llegará a Costa Rica?

‘La Nación’ revisó la literatura sobre estas nuevas mutaciones en Reino Unido y conversó con un especialista. Estos son los hallazgos

(FILES) In this file photo a syringe is filled with a first dose of the Pfizer Covid-19 vaccine at a mobile vaccination clinic at the Weingart East Los Angeles YMCA in Los Angeles, California on August 7, 2021. - Covid-19 vaccination efficacy is decreasing over time, US authorities warned on August 18, 2021 as they authorized booster shots for all Americans from September 20 starting eight months after an individual has been fully vaccinated. The move comes as scientists and health experts grapple with how to beat back the surging Delta variant of the coronavirus, and follows extensive debate over whether a third injection of the Pfizer-BioNTech and Moderna vaccines would be appropriate. (Photo by Patrick T. FALLON / AFP)
(FILES) In this file photo a syringe is filled with a first dose of the Pfizer Covid-19 vaccine at a mobile vaccination clinic at the Weingart East Los Angeles YMCA in Los Angeles, California on August 7, 2021. - Covid-19 vaccination efficacy is decreasing over time, US authorities warned on August 18, 2021 as they authorized booster shots for all Americans from September 20 starting eight months after an individual has been fully vaccinated. The move comes as scientists and health experts grapple with how to beat back the surging Delta variant of the coronavirus, and follows extensive debate over whether a third injection of the Pfizer-BioNTech and Moderna vaccines would be appropriate. (Photo by Patrick T. FALLON / AFP) PATRICK T. FALLON
(Video) ¿Cómo es la variante 'delta plus'?

En los últimos días, Reino Unido y otros países comenzaron a reportar una mayor cantidad de contagios, lo que se ha asociado con una “subvariante” de la variante delta del SARS-CoV-2, virus causante de la covid-19. Su nombre científico es AY4.2, pero se le bautizó popularmente como “delta plus”.

Esta “subvariante” también se ha visto en Estados Unidos, Dinamarca, Israel y Rusia y se estudia de cerca para ver su impacto. Se investiga si es más transmisible o si eventualmente pudiera tener algún efecto para minimizar la efectividad de las vacunas, sin que aún se tengan resultados preliminares.

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