No one else I know has it.

[Not in its true form, since Erskine was killed. The formula was lost with him and any attempts at replicating it had all been incomplete or unpredictable. It turned out that the man had taken his golden goose with him, leaving only Steve behind.]

You didn't know you... That seems like a pretty big thing to miss, Bucky.

[He is not less concerned by this news.]

Anyway, it doesn't seem to be resisting this one. There's something off about this disease. We should get you looked at just in case.