Thursday, 29 July 2021

Pfizer impulsa el debate de las dosis de refuerzo contra la COVID-19 con un nuevo estudio


By BY CARL ZIMMER, APOORVA MANDAVILLI AND SHARON LAFRANIERE from NYT en Español https://ift.tt/3zHdoye

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How we reported in -30C temperatures in Canada's Arctic

BBC's Nadine Yousif and Eloise Alanna spent five days travelling with the country's military rangers through frostbite and sub-zero ...