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(FILES) In this file photo taken on August 07, 2021, a syringe is filled with a first dose of the Pfizer Covid-19 vaccine at a mobile vaccination clinic in Los Angeles. - People who received Johnson & Johnson's Covid-19 vaccine may benefit from a booster dose of Pfizer or Moderna, preliminary results of a US study published October 13, 2021 showed. (Photo by Patrick T. FALLON / AFP)
(FILES) In this file photo taken on August 07, 2021, a syringe is filled with a first dose of the Pfizer Covid-19 vaccine at a mobile vaccination clinic in Los Angeles. - People who received Johnson & Johnson's Covid-19 vaccine may benefit from a booster dose of Pfizer or Moderna, preliminary results of a US study published October 13, 2021 showed. (Photo by Patrick T. FALLON / AFP)
/ PATRICK T. FALLON
Por Agencia EFE

La combinación de vacunas Sputnik V y Moderna o Pfizer “es efectiva y segura”, según un estudio de la Universidad Nacional Autónoma de Honduras (Unah), difundido este martes, que contó con la asesoría del reconocido científico hondureño Salvador Moncada, quien reside en Londres.

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