If we just wait for the next Ebola to happen, we might not be so lucky next time. We might face a different virus, one that's more deadly, one that spreads better among people, or maybe one that just completely outwits our vaccines, leaving us defenseless.
Si solo esperamos a que ocurra otro ébola, podríamos no ser tan afortunados la próxima vez, enfrentar un virus diferente, uno más mortal, que se extienda mejor entre la gente, o tal vez uno que simplemente supere nuestras vacunas, dejándonos indefensos.