Board Thread:General Discussion/@comment-1255374-20150613052057/@comment-26066301-20150804041402

If you guys have completely forgotten, in the beginning of "The Deadly Venom", before Karai was given the mind control worm, she had complete control over her mutation and was actually speaking in full sentences. (When she was losing her sentience, she could barely speak and could only say a few words.). Basically her humanity is safe as of "The Deadly Venom"

So, I'll say it again; A cure for Karai is unnecessary at this point of the plot!