Look-back investigations determine whether a transfusion-transmissible infection may have been transmitted through a blood product.

Two types:

Donor-Initiated:
If a repeat donor later tests positive for HIV, hepatitis B, or hepatitis C, WCBS traces recipients of their previous donation.

Patient-Initiated:
If a clinician suspects a patient acquired an infection from a transfusion, WCBS investigates by recalling donors for testing. Phylogenetic testing may be used.

Each case is reviewed by the WCBS CEO/Medical Director or Lead Medical Consultant.

For look-back investigation queries, please contact Sr Tania Paarman, WCBS Specialised Donations Manager.

Sr Tania Paarman: Telephone +27 (0)21 507 6393 | Email Tania@wcbs.org.za