Minimum-I would remove and burn any frames with infected brood, if it's a small hive probably all the frames. The bees could be shaken off and given foundation to try and start over.
When I found out I had it(almost half my hives) that's what I did for most of them, I didn't worry about any of the equipment except the frames.
One or two I treated with terramycin and tried to overwinter to shake/bake in spring but they didn't make it. Burned those frames as well.
I've been using the boxes, bottom boards, covers without any re-occurance, it's been 5 years, NO antibiotics and the state inspector has been through them since then as well.
Not sure what your state laws are, and you can always go bigger with the bonfire.