If your hostas have holes and look ratty, I would suspect they are just tired and ready for a long winters nap. I would not dig anything up or take any drastic measures until next year.

If you could post a photo of the plant (or plants) you suspect that would be easier.

Alexa

The holes are probably caused by slugs, not the virus. The virus causes a mottled or bleeding look in the leaf.

Put down some slug bait now, and several applications, about 2 weeks apart, in the spring, at first sign of the hostas emerging.

They'll be fine.

You,folks made my day I thought my bed was doomed but you give me much hope as we have plenty of slugs.Does the slug treatment bother earth worms?
Thanks again,
Peter

The slug treatment is actually eaten by the slugs and kills them. I use Sluggo and it is harmless to other animals, pets and children.