Covid-19 vaccine, a challenge for the world: how close are they to creating it?

Cobertura de los medios

• Nombre	Covid-19 vaccine, a challenge for the world: how close are they to creating it?
  Nombre/canal del medio de comunicación	CE Noticias Financieras English
  Fecha	3/22/20
  Personas	Juan David Ramirez Gonzalez