Salud
La subvariante BA.5 de Omicron se está propagando rápidamente: qué saber sobre la nueva cepa de COVID
Se ha descubierto una nueva subvariante de la variante omicron de COVID-19, conocida como BA.5, en los EE. UU. y en varios otros países.
Se está propagando rápidamente y es altamente transmisible.
Esto es lo que necesita saber sobre esta subvariante emergente, conocida como BA.5.
¿Qué es BA.5?
La subvariante BA.5 desciende de la variante omicron original de COVID-19, conocida como BA.1. Esta variante original es responsable de la cepa altamente transmisible de COVID-19 que hizo que aumentara el número de casos de coronavirus en los EE. UU. y en todo el mundo.
Según NBC News, BA.5 representó casi el 54% de los casos de COVID-19 en los EE. UU. hasta el 2 de julio.
Es altamente transmisible y es «unas cuatro veces más resistente a los anticuerpos de las vacunas que BA.2», la otra subvariante dominante de omicron que dominó los recuentos de casos en todo el mundo solo unos meses antes.
¿Dónde se ha extendido BA.5?
BA.5 se detectó por primera vez en Sudáfrica antes de extenderse a lugares como EE. UU. y el Reino Unido esta primavera, según The New York Times. Desde entonces, se ha convertido en la variante dominante de COVID-19 en los EE. UU., superando a BA.2.
¿Las vacunas funcionan contra BA.5?
Según Yale Medicine, la subvariante BA.5 de omicron tiene una tendencia a evadir algunos de los anticuerpos producidos después de vacunas e infecciones.
Sin embargo, Francois Balloux, director del Instituto de Genética del University College London, le dijo a NBC News que si estuvo infectado con la variante BA.2 en el pasado, es posible que tenga cierta protección contra BA.5.
Aunque BA.5 es más transmisible, no se ha encontrado que cause más enfermedades, según NBC News.
¿Cuáles son los síntomas de la variante BA.5?
Según los datos del Zoe COVID Symptom Study, que permite a las personas registrar sus síntomas a través de sus teléfonos inteligentes, las personas en el Reino Unido informaron los siguientes síntomas:
Nariz que moquea
Dolor de garganta
Dolor de cabeza
Tos persistente
Fatiga
Menos de un tercio de los encuestados también informaron tener fiebre.
¿Cómo me protejo de la subvariante BA.5?
Según los Centros para el Control y la Prevención de Enfermedades (CDC), vacúnese si tiene 6 meses o más y no ha recibido su serie primaria de vacunas.
Si tiene 5 años o más, los CDC recomiendan una vacuna de refuerzo, si es elegible. Si tiene 50 años o más y ya recibió su refuerzo principal hace al menos cuatro meses, los CDC recomiendan una segunda vacuna de refuerzo si es elegible.
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