Affiliation:
1. Immunology Research, Regional Public Health Laboratory, Groningen, The Netherlands.
Abstract
An enzyme-linked immunosorbent assay was developed for quantitation of circulating immune complexes (CICs) containing specific antipneumococcal immunoglobulin G (IgG). These CICs were detected in 17 (85%) of 20 patients with bacteremic pneumococcal pneumonia, 4 (36.4%) of 11 patients with probable pneumococcal pneumonia, 3 (16.7%) of 18 patients with pneumonia of other (nonpneumococcal) etiology, and 13 (41.9%) of 31 patients with pneumonia of unknown etiology. There was no correlation between CICs and serum IgG antibody levels. Pneumococcal capsular antigen was demonstrated in dissociated CICs by latex agglutination.
Publisher
American Society for Microbiology
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