As the population increases and becomes denser, these problems will inevitably become more common.
Does it mean we're doomed to a devastating pandemic? I seriously doubt it.

What a sad picture--sad for the sake of the pigs, for the people who depended upon them, for the environment, for the obvious lack of sanitation, for all animals (including humans) that will be adversely affected by the pigs diseased' corpses, for the implications for the rest of the world, and for the reputation of China. Who knows what the pigs have been exposed to in their water or feed that could be the cause of this devastating sickness.