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26 de abril de 2024
ESTUDIO DEL CONICET
Los ya contagiados podrían inmunizarse con una sola dosis de la Sputnik viernes 5 de marzo de 2021 12:09
Un estudio realizado por el Conicet bajo la coordinación del Ministerio de Salud de la provincia de Buenos Aires, reveló una alta respuesta inmune a la primera dosis de la vacuna rusa Sputnik V en personas previamente contagiadas, quienes podrían no requerir la segunda dosis. Esto podría influir en la optimización de las vacunas.
Según informó la cartera sanitaria provincial, la investigación determinó que el 100 % de las personas que participaron del estudio desarrolló anticuerpos específicos contra el nuevo coronavirus SARS-CoV-2 tras recibir el esquema completo de dos dosis de la Sputnik V.
Pero también reveló que la cantidad de anticuerpos en personas previamente infectadas que recibieron una sola dosis de la vacuna resultó ocho veces superior a la de aquellos sin infección previa que recibieron el esquema de vacunación de dos dosis.
Según el Ministerio de Salud bonaerense, el resultado de estudio "avalaría revisar el esquema de vacunación para aquellas personas con antecedentes confirmados de infección" por covid-19, "lo que permitiría optimizar recursos sin comprometer la eficacia de la inmunización".
La investigadora Andrea Gamarnik, miembro del equipo que realizó el estudio y jefa del Laboratorio de Virología Molecular de la Fundación Instituto Leloir (FIL), apuntó que los infectados previamente y vacunados luego con una sola dosis generan "niveles de anticuerpos similares e incluso superiores a los producidos por personas no infectadas que recibieron dos dosis de la vacuna".
En la primera etapa del estudio se analizó la respuesta inmune de 142 trabajadores de la salud de 18 a 59 años, de los cuales 22 habían estado previamente infectados con el nuevo coronavirus. EFE