Abstract
Two preterm infant boys not known to be at risk developed clinical, laboratory, and pathologic features of acquired immune deficiency syndrome (AIDS) after receiving multiple blood transfusions in the neonatal period. Their clinical courses were characterized by failure to thrive, recurrent otitis media, hepatomegaly, and fatal interstitial pneumonia. Laboratory evaluation revealed progressive lymphopenia, reversed T helper/suppressor ratios, increased percentages of B-lymphocytes, decreased lymphoproliferative responses to mitogens, hyperimmunoglobulinemia, and high levels of circulating immune complexes. At postmortem examination thymic involution, lymphocyte depletion in spleen and lymph nodes, and micronodular mineralization in the central nervous system were seen. The findings were not specific for other known congenital immune deficiencies and were most indicative of AIDS. The lack of other risk factors suggests transmission of AIDS via blood transfusions in the neonatal period.
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