21 Ocak 2021 Perşembe

Cómo funciona la vacuna de Pfizer-BioNTech


By POR JONATHAN CORUM AND CARL ZIMMER from NYT Health Dos inyecciones pueden preparar el sistema inmunitario para combatir el coronavirus. https://ift.tt/3bZcWTx

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Routine Childhood Vaccinations in the U.S. Slipped During the Pandemic

By BY BENJAMIN MUELLER AND JAN HOFFMAN from NYT Health Nationwide, the number of kindergartners with the required shots fell below the targ...