Initial typing to determine if the CBU is a match for the recipient, includes HLA-
A, -B, -DRB1 intermediate resolution. If the product is a match, confi rmatory HLA
typing is performed on an additional CBU sample. Any other HLA typing of the
mother, other family members, the donor, or the recipient are performed by the
transplant facility where the recipient will be treated. CBUs are tested for sickle cell
anemia and thalassemia.