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Free Content Detection of trypanosome-specific antibodies in saliva, towards non-invasive serological diagnosis of sleeping sickness

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Summary Objective 

The detection of trypanosome-specific antibodies in saliva is technically feasible, and, if clinically validated, could become an attractive option for non-invasive diagnosis of sleeping sickness. We wanted to optimize the test format of an enzyme-linked immunosorbent assay (ELISA)-based antibody detection system. Methods 

Different ELISA formats for antibody detection in serum and saliva were developed and standardized. Saliva and serum samples were collected from 78 patient and 128 endemic control samples, and sensitivity and specificity of saliva ELISAs, serum ELISAs and the card agglutination test for trypanosomiasis (CATT), were evaluated. Results 

All ELISA formats showed sensitivity and specificity above 90%. Saliva ELISAs showed a similar test performance as serum ELISAs and the CATT on whole blood or serum. Conclusions 

This study confirms the potential of trypanosome-specific antibody detection in saliva.
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Keywords: Trypanosoma brucei gambiense; antibody detection; diagnosis; human African trypanosomiasis; saliva; serum

Document Type: Research Article

Affiliations: 1:  Department of Parasitology, Institute of Tropical Medicine, Antwerp, Belgium 2:  Institut de Recherche pour le Développement, Laboratoire de Recherche et de Coordination sur les Trypanosomoses, Montpellier, France 3:  Institut de Recherche pour le Développement, Bobo-Dioulasso, Burkina Faso 4:  Programme National de Lutte contre la Trypanosomiase Humaine Africaine, Cotonou, Benin 5:  Institut National de Recherche Biomédicale, Kinshasa, D. R. Congo 6:  Programme National de Lutte contre la Trypanosomiase Humaine Africaine, Kinshasa, D. R. Congo 7:  Katholieke Hogeschool Sint-Lieven, Gent, Belgium 8:  Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium

Publication date: 2006-05-01

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