Eventually, what we'll have to have is certificates of who is a recovered person, who is a vaccinated person, because you don't want people moving around the world, where you'll have some countries that won't have it under control, sadly, you don't want to completely block off the ability for those people to go there and come back and move around.
Al final tendremos certificados que indiquen quién ha superado la enfermedad y quién está vacunado, porque no queremos que la gente se mueva por todo el mundo, en el que habrá países que no lo tengan bajo control, y no queremos impedir completamente la posibilidad de moverse.