Registered Nurse Reanne Takara administers the Pfizer COVID-19 vaccine to frontline health workers at UC Davis Medical Center on Dec. 15, 2020. Photo courtesy of UC Davis Health
World

La injusticia en la distribución de vacunas prolongará la pandemia, advierte la OMS

A woman holds a small bottle labeled with a "Vaccine COVID-19" sticker and a medical syringe. Reuters
United States

Las empresas de Estados Unidos empiezan a exigir la vacuna a sus trabajadores

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