A four-year-old boy who was diagnosed with Glanzmann's thrombasthenia
received supportive treatment and desmopressin for his bleeding episod
es. He seldom received blood components, except for platelet concentra
tes, due to severe bleeding. He was exposed to 18 routine donors and 2
plateletpheresis donors who were negative for human immunodeficiency
virus (HIV) antigen and anti-HIV upon screening. At the age of 3 years
and 9 months (4.5 months after the transfusion of platelet concentrat
e), he developed full-blown AIDS and died from circulatory failure 3 m
onths later. The source of HIV transmission was identified as 1 donor
who developed anti-HIV 3 months after the last donation. The rather sh
ort incubation time of AIDS in this case was attributed to a large ino
culum of HIV virus in the 'window period' of infectivity of the newly
infected donor. This case illustrates transfusion-transmitted HIV lead
ing to AIDS, even though HIV antigen and anti-HIV screening tests were
negative.