Question about ringworm disinfection of wool items

Three years ago, we brought rescued mill cats into our home that carried a highly resistant strain of ringworm. We had recurring infections for at least six months. It was so hard to get rid of we had to rent a hospital grade device to kill fungal spores in the air… twice. The kids’ scalps were even photographed by a mycologist for a publication.

I recently opened a vacuum sealed bag into which I had put my expensive wool kilt from Scotland as it could not be washed in boiling water. Unfortunately, I have read that vacuum sealing can prolong the viability of spores. I didn’t wear it during the infection period.

Does anyone have a suggestion of how to clean this item?