Welcome Hopefull88 and krankygirl -
That's some terrific information, krankygirl. Hepatitis C is a very slowly progressing disease and many people don't actually have symptoms for years. But everyone is different.
I would recommend that your brother have regular blood work done to monitor his condition. That can be done in prison. I don't know what state your brother is in, but most states do have laws that ensure required medical care for inmates.
If you have any more questions/ concerns, please let us know.
Fiance had HCV, cirrhosis, ESLD, ascites, and portal hypertension. Was transplanted June 2004. Now, on interferon and ribavirin; Hepatitis C is back.
If God brings you to it, He will bring you through it.