system
Given the following post, respond as if you're commenting on Reddit:
human
[ATLA] Suppose the Avatar spirit ever "skipped" a nation, or perhaps even more...

Avatar takes place in a time period where tech and medicine is comparable to a real world period in which death in early infancy was common. 

If the Avatar reincarnated into the air nation after Roku died, but then suffered a fatal disease within a year, does the spirit immediately get reincarnated into the water nation?

What would happen if this caused the avatar to "skip" to the water, earth, or fire nation before the war started? Would the water nation better defend from the fire? Would he be far better protected in the earth nation? Would the fire nation laugh triumphantly as they try to use the new Avatar as a weapon of war?
gpt
I would assume that if the child were to get gravely sick the avatar state would kick in and help see the child through it. We see this in Korra when they give her the metal poisoning and the avatar state turns on trying to cure her.