The plague was stopped before vaccines existed... Same with many other pandemics. A pandemic is an epidemic that affects a larger area, not an unstoppable monster
I'll be glad if we get a vaccine. If we don't, we must fight it nonetheless. In 2003, we stopped the SRAS epidemic, another coronavirus. We stopped it. There's no vaccine yet. The 2015 MERS isn't completely extinct but it's under control.
Also I think Korea and a few other Asian countries will be virus free soon (those who thought the 2003/2015 epidemics)