Abstract
Eighty mucoid effusion samples obtained from 56 patients with otitis media with effusion (OME) were subjected to quantitative and qualitative bacteriological analysis using standard culturing methods, direct microscopy and immunofluorescent assay. 30% of the samples contained culture-positive pathogens (H. influenzae, S. pneumoniae, B. catarrhalis), with counts never exceeding 5 x 10(5) per ml. In addition, 19% of the samples had dormant H. influenzae and S. pneumoniae, which did not grow on standard agar plates. Viable and dormant bacteria, as well as bacterial remnants, play a crucial role in the pathogenesis of OME and similarities between OME and reactive arthritis, i.e. Lyme arthritis, Reiter's syndrome and rheumatic fever, are evident.
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