system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Are the 30% of ebola survivors just lucky or is there something other than proper care that directly lead to their survival? Are survivors left with any permanent physical damage and does surviving once build a tolerance or antibody to prevent future infection?
gpt
Care will matter.  The two most prominent symptoms of ebola are vomiting and diarrhea.  That will dehydrate you real fast. 

The dehydration makes it difficult to fight it, it can even kill you through electrolyte imbalance right there.   

However, dehydration alone is not the problem.  Many people have been given IV fluids which are basically ironclad protection against dehydration and still died of ebola.   IV fluids will only *reduce* the fatality rate somewhat.