The government is lying about the bird flu. The epidemic is actually caused by a bioweapon that went out of control.
Poyo has a power.
Popo is poyopoyic. It is the ability to be Poyo. It has the same provenance as the other powers, and because of this, if a cibopath eats him...In the end, the solving of the comic's ongoing mystery will result in everyone with a food-related power losing it.
By that point, the Vampire will have so many powers that the process will be fatal for him, perhaps because they're the only things keeping him alive by that point.