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  • 1
    In: Journal of Bacteriology, March, 1997, Vol.179(5-6), p.1764(10)
    Description: The nucleotide sequence of the gene encoding the major outer membrane protein (MOMP) of Haemophilus ducreyi was analyzed by sodium dodecyl sulfate-polyacrilamide gel electrophoresis. Nucleotide sequence analysis of the MOMP gene of Haemophilus ducreyi indicated the presence of two OmpA homologs that were encoded by momp and ompA2 genes. Southern blot analysis also indicated the high degree of similarity between MOMP and OmpA2 which existed in tandem in the different strains of Haemophilus ducreyi.
    Keywords: Pathogenic Bacteria -- Genetic Aspects ; Membrane Proteins -- Analysis ; Bacterial Proteins -- Analysis
    ISSN: 0021-9193
    E-ISSN: 10985530
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  • 2
    Language: English
    In: The Journal of Infectious Diseases, 1 June 1997, Vol.175(6), pp.1390-1395
    Description: The performance of two EIAs (adsorption EIA and lipooligosaccharide [LOS] EIA) that detect antibodies to Haemophilus ducreyi was evaluated with serum specimens obtained from 163 patients (96 with genital ulcer disease [GUD]). Paired serum specimens (initial and follow-up) were obtained from 52 of the GUD patients. By use of initial serum specimens from 82 GUD patients whose etiologic agents for their ulcers had been identified, the adsorption EIA had a sensitivity and specificity for chancroid of 53% and 71%, while the LOS EIA had a sensitivity and specificity of 48% and 89%, respectively. Sensitivity and specificity of the adsorption EIA increased to 78% and 84%, respectively, when the results of follow-up serum specimens were used to calculate optimal performance. The proportion of patients testing positive for H. ducreyi who had anti-H. ducreyi IgG antibodies, as determined by adsorption EIA, increased with the duration of infection, thus limiting the role of EIAs in the diagnosis of chancroid.
    Keywords: Health sciences -- Medical conditions -- Physical trauma -- Haemophilus ducreyi ; Health sciences -- Medical conditions -- Infections -- Haemophilus ducreyi ; Physical sciences -- Chemistry -- Chemical reactions -- Haemophilus ducreyi ; Health sciences -- Medical sciences -- Immunology -- Haemophilus ducreyi ; Biological sciences -- Biology -- Microbiology -- Haemophilus ducreyi ; Health sciences -- Medical conditions -- Diseases -- Haemophilus ducreyi ; Biological sciences -- Biology -- Anatomy -- Haemophilus ducreyi ; Health sciences -- Medical conditions -- Infections -- Haemophilus ducreyi ; Health sciences -- Medical sciences -- Immunology -- Haemophilus ducreyi ; Physical sciences -- Earth sciences -- Geology -- Haemophilus ducreyi
    ISSN: 00221899
    E-ISSN: 15376613
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