She is healed by John Coffey, after which she lives another ten years, ultimately outliving her husband by two years and dying peacefully of a heart attack. After Coffey heals Melinda, she gives him a medal as a token of appreciation.

What did John Coffey do to Melinda?

When they return to the Mile, John passes the "disease" from Melinda into Percy, causing him to go mad and shoot Wharton to death before falling into a catatonic state from which he never recovers.

What happened to Melinda Moores Green Mile?

She has an end stage Cancer and is in a great deal of pain. Paul Edgecomb arranges, that John Coffey goes to her so that he can cure her, which he does.