In this case, we are hoping to squeeze it down dramatically, but there are many things we're going to have to go through, and it's really about making sure that vaccine works and it is safe for use in what ultimately may be billions of people.
En este caso, esperamos reducirlo dramáticamente, pero hay muchas cosas que se tendrán que anteponer y se trata de asegurarse que la vacuna funcione y que sea segura para un uso de lo que a fin de cuentas pudiera ser miles de millones de personas.