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A 5-dose vial of the Pfizer Covid-19 vaccine is displayed at a mobile clinic hosted by McDonald's and the California Department of the Public Health on September 21, 2021 in Los Angeles, California. - California leads the nation with the lowest rate of Covid-19 transmission as unvaccinated people continue to be more likely infected and hospitalized than those vaccinated. (Photo by Frederic J. BROWN / AFP)
A 5-dose vial of the Pfizer Covid-19 vaccine is displayed at a mobile clinic hosted by McDonald's and the California Department of the Public Health on September 21, 2021 in Los Angeles, California. - California leads the nation with the lowest rate of Covid-19 transmission as unvaccinated people continue to be more likely infected and hospitalized than those vaccinated. (Photo by Frederic J. BROWN / AFP)
/ FREDERIC J. BROWN
Por Agencia AFP

La vacuna contra el coronavirus desarrollada por los laboratorios Pfizer y BioNTech es “eficaz” contra la variante ómicron después de “tres dosis”, dijo este miércoles BioNTech en un comunicado, que desea preparar una vacuna más adaptada a esta alteración del virus hacia marzo.

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