Strongly recommend just chopping it out and rewaxing with fresh foundation.
Have learned a lot of serious lessons over the last 12 years about false economies vis a vis conserving used brood combs. Now ANY death from ANY cause gets chopped out, anjd rendered down, then frames sterilised, and rewaxed. Even any frames of foundation in dead outs gets redone. Long term cost less than if you give disease to even 1% of colonies. (Not just talking brood diseases...either of the nosemas for eample).
Do appreciate this is easier, cheaper, and faster for us using wired frames instead of wired foundation., but it is still a small penalty for an extra layer of safety.