| Obligatory | 1. Must not donate if: a) Less than two years from completing treatment and cure. b) Has chronic sinus. 2. Exclude: Previously affected bone. |
| Discretionary | If two years from completing treatment and cure, unaffected bone may be accepted. |
| Additional Information | Sometimes it is difficult to be certain that all infection has been eliminated. Waiting two years minimizes the risk of any infection being passed on by a donation. |