Interferons don't always work, and they don't cure Hepatitis, they just reduce it.Lots of people live a very long time with Hep C.If she continues to be unresponsive to treatment, and the liver damage gets worse, there may be the option for a liver transplant, which is the very easiest of organ transplants, and has a really high success rate. You can even do a partial transplant from a friend or family member, and both people regenerate the missing parts of the liver. (How cool is that?)If she and her doctor find a treatment plan that works, she can live to be a very old lady.