Author:
Johnson P. D. R.,Hanlon M.,Isaacs D.,Gilbert G. L.
Abstract
SummaryTwo common forms of invasive disease due toHaemophilus influenzaetype b (Hib) are epiglottitis and meningitis. It is not known why some children develop epiglottitis and others meningitis. To examine the hypothesis that epiglottitis occurs in children who may have been previously exposed to Hib, and who would therefore exhibit a more vigorous antibody response in convalescence, we measured levels of antibody to Hib capsule in 92 children. Geometric mean convalescent-phase IgG, IgA, IgM and total antibody levels were significantly higher in 45 children with epiglottitis than in 47 with meningitis, even after adjustment for age differences (mean total antibody, 95% confidence intervals: meningitis 0·38, 0·34–0·43; epiglottitis: 2·25, 2·0–2·54 μg/ml). However, contrary to previous reports, a poor antibody response was only observed in a minority of children with meningitis; the antibody response of the majority was indistinguishable from that observed in children with epiglottitis.
Publisher
Cambridge University Press (CUP)
Subject
Infectious Diseases,Epidemiology
Cited by
7 articles.
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