Fadima Yaya Bocoum1, Henri Ouédraogo2, Grissoum Tarnagda2, Alice Kiba3, Simon Tiendrebeogo2, Fabrice Bationo2, Benjamin Liestman4, Serge Diagbouga2, Christina Zarowsky5, Ramata Ouédraogo Traoré6, Séni Kouanda2. 1. Institut de Recherche en Science de la Santé (IRSS), Département biomédical et santé publique, Ouagadougou, Burkina Faso ; Free Afrik, Ouagadougou, Burkina Faso ; University of Western Cape, School of Public Health, Cape Town, South Africa. 2. Institut de Recherche en Science de la Santé (IRSS), Département biomédical et santé publique, Ouagadougou, Burkina Faso. 3. Centre Régional de Transfusion Sanguine (CRTS), Ouagadougou, Burkina Faso. 4. Johns Hopkins Bloomberg School of Public Health, Baltimore, USA. 5. University of Western Cape, School of Public Health, Cape Town, South Africa. 6. Université de Ouagadougou, Laboratoire de Bactériologie-Virologie.
Abstract
BACKGROUND AND OBJECTIVE: Little information is available on the rapid diagnostic testing for syphilis in Burkina Faso. The objectives of the study were (i) to assess the sensitivity and specificity of four on site rapid tests in comparison with Treponema pallidum haemagglutination assay (TPHA) as a gold standard and (ii) to evaluate the operational characteristics of those tests among health workers in a maternity unit. METHODS: Four rapid syphilis tests commercially available in Burkina Faso were evaluated using archived serum samples and Treponema pallidum hemagglutination assay (TPHA) as the gold standard. Blood samples were collected between November 2011 and June 2012 from blood donors at the Regional Blood Transfusion Center of Ouagadougou. The sensitivity and specificity of the tests were calculated. Evaluation of operational characteristics such as clarity of pamphlet, complexity of technique, duration, was conducted in a first-level healthcare center with health workers in maternity unit. RESULTS: Alere DetermineTM Syphilis was the most sensitive of the four rapid syphilis tests evaluated. It was followed by SD Bioline Syphilis 3.0, Cypress Diagnostics Syphilis Quick test and Accu-Tell ® Rapid Anti-TP, which was the least sensitive. The four tests demonstrated a good diagnostic specificity for syphilis (95-98%), and healthcare workers found them easy to use. CONCLUSIONS: The study allowed confirming the good performance of three of four rapid syphilis tests in Burkina Faso. More research will be conducted to assess the feasibility of introducing selected rapid tests for syphilis in antenatal care services.
BACKGROUND AND OBJECTIVE: Little information is available on the rapid diagnostic testing for syphilis in Burkina Faso. The objectives of the study were (i) to assess the sensitivity and specificity of four on site rapid tests in comparison with Treponema pallidum haemagglutination assay (TPHA) as a gold standard and (ii) to evaluate the operational characteristics of those tests among health workers in a maternity unit. METHODS: Four rapid syphilis tests commercially available in Burkina Faso were evaluated using archived serum samples and Treponema pallidum hemagglutination assay (TPHA) as the gold standard. Blood samples were collected between November 2011 and June 2012 from blood donors at the Regional Blood Transfusion Center of Ouagadougou. The sensitivity and specificity of the tests were calculated. Evaluation of operational characteristics such as clarity of pamphlet, complexity of technique, duration, was conducted in a first-level healthcare center with health workers in maternity unit. RESULTS: Alere DetermineTM Syphilis was the most sensitive of the four rapid syphilis tests evaluated. It was followed by SD Bioline Syphilis 3.0, Cypress Diagnostics Syphilis Quick test and Accu-Tell ® Rapid Anti-TP, which was the least sensitive. The four tests demonstrated a good diagnostic specificity for syphilis (95-98%), and healthcare workers found them easy to use. CONCLUSIONS: The study allowed confirming the good performance of three of four rapid syphilis tests in Burkina Faso. More research will be conducted to assess the feasibility of introducing selected rapid tests for syphilis in antenatal care services.
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