The deferral time for any transfusion patient to stop donating blood products is 12 months. After this time, these donors can return to donating blood, serum or plasma. Transfusion grade collections don’t allow for transfused patients to donate. However, only some sites collect “transfusion grade” serum while others don’t. This means that blood from transfused patients can be present in material pooled from a number of different sites.
Transfused patients are not used for collections.
Can donors who have received blood transfusions, donate blood for Human AB Serum collection purposes?