Comparison of enzyme immunoassays for antibodies to Haemophilus ducreyi in a community outbreak of chancroid in the United States

The Journal of Infectious Diseases
C Y ChenS A Morse

Abstract

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.

Citations

Oct 4, 2002·Microbes and Infection·Cliffton T H BongStanley M Spinola
Apr 19, 2006·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Ian M MackayTheo P Sloots
Jan 31, 2002·Sexually Transmitted Diseases·Cliffton T H BongStanley M Spinola
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Feb 23, 2021·Frontiers in Immunology·Julie A BrothwellStanley M Spinola
Apr 4, 2000·Journal of Clinical Microbiology·C ElkinsS Morse

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