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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The costs and challenges facing the 2026 World Cup

The World Cup officially kicked off this week - but alongside the football, there are questions around heat, cost, the environmental impact ...