Causes of allogeneic blood transfusion–related deaths as a percentage of all deaths reported to SHOT (1996-2007)⁴ or the FDA (2005-2007).¹  The figure shows the causes of death that accounted for at least 1% of all deaths in either of these 2 reports.^1,4  Transfusion-associated circulatory overload (TACO) was not specifically captured, and anaphylaxis not specifically reported, by the United Kingdom SHOT surveillance system in 1996 to 2007.⁴  There were no deaths due to posttransfusion purpura (PTP) reported to the US Food and Drug Administration (FDA) from 2005 to 2007.¹  TA-GVHD indicates transfusion-associated graft-versus-host disease.