My mum has pretty bad CFS, but has never been diagnosed as such. It's all put down to hypothyroidism, even though that has been under control for some time and she's had no improvement (and yes she's tried T3). She tested positive for Ross River Virus just after she became chronically ill... I'm sure this is the source of her problems, since I too became very sick after a virus. I want to get her some Transfer Factor to try, but am wondering if the broad spectrum ones would be effective for this? If anyone knows anything about this, I'd appreciate your help. Thanks!