Late spring cold snaps/frosts/freezes can cause this appearance on partial foliage. I have two Old Glory plants on the north side of our home that have been there 13 years that had a little bit of this "look" and I have seen cold damage look like this before. That said though, I have seen Virus X first hand at my neighbors who bought hosta from Home Depot. Plants can and do exhibit partial foliage deformation on the plant. I have a Virus X test kit and my neighbor's hosta that he purchased from Home Depot did test positive. The good news is that the disease has not spread or gotten worse over the years. Be careful handling cut off portions of the plant and that you don't drip hosta "juice" on any other hosta. Clean shovels and gardening implements with alcohol after cutting into a suspect plant. Yours looks an awful like like Virus X. I hope not.
