Viruses never go away completely. The chicken pox virus that we had as kids can come back when we are older as shingles. It is hiding in the spine.
I knew a lady who took conventional tx and the virus became undetectible and since she also had lupus she took prednisone and it brought back the Hep. C virus. It became chronic again and she eventually had to do the tx again.
We just want the hep. C virus to become undetectable for 6 mos. then tested again at a year, if you are still undetectable after a year they say you are "cured". But you can never give blood or donate organs. There is always a little bit of the virus somewhere in the body.