Abstract
In a prospective study, 91 episodes of fever in neutropenic children with cancer were evaluated. Fifteen episodes were septicemias, verified by a positive blood culture, 62 were fevers of unknown origin, 6 were focal infections and 8 were of other etiologies (i.e. drug fevers and viral infections). Serum antibody responses to bacteria were measured in paired sera by an enzyme immunoassay method. Bacterial infection was demonstrated serologically in 20% of documented septicemias, in 35% of fevers of unknown origin and occasionally in the other groups. Tests were available and found positive in the fever of unknown origin group for Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, Moraxella (Branhamella) catarrhalis and enterobacteria. Some had multiple etiology. In conclusion, bacterial serology is a promising method of identifying bacterial etiology in fever of otherwise unknown origin in neutropenic children with cancer.
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