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Serhan WS, Khan RA, Gasim EF, Alketbi MS, De Massis F, Calistri P, Giovannini A, Al Hosani MA, Al Jaberi SA, Al Mansoori AM, Al Ketbi AS, Khalafalla AI, Almuhairi SS. Performance of an Immunochromatographic Test (ICT) in Comparison to Some Commonly Used Serological Tests for the Diagnosis of Brucellosis in Dromedary Camels (Camelus dromedarius). Microorganisms 2019; 7:microorganisms7120591. [PMID: 31757071 PMCID: PMC6956270 DOI: 10.3390/microorganisms7120591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/09/2019] [Accepted: 11/14/2019] [Indexed: 02/05/2023] Open
Abstract
Serological tests may represent an essential tool for the diagnosis of camel brucellosis; however, concerns arise in the scientific community regarding the direct transposition from cattle and small ruminants without adequate validation. The present study was made to compare four serological tests for the diagnosis of brucellosis in dromedary camels (Camelus dromedarius). In terms of sensitivity, our results show that the Immunochromatographic Test (ICT) shows the higher value of sensitivity, 98.67% (95% Confidence Level (C.L): 94.36%-99.99%), followed by the Fluorescence Polarization Assay (FPA) with 95.05% (95% C.L: 88.23%-99.51%), then the Competitive Enzyme-Linked Immunosorbent Assay (c-ELISA) with 94.94% (95% C.L: 88.25%-99.45%) and, finally, the Rose Bengal Test (RBT) with 68.95% (95% C.L: 56.55%-80.69%), which is the only test showing a significantly lower sensitivity compared to the others. On the other hand, our study revealed no significant difference in terms of specificity between all the tests under study, with a range from 99.06% (95% C.L: 98.34%-99.64%) for the ICT to 99.92% (95% C.L: 99.64%-100%) for the RBT. The ICT was found to be comparable in terms of sensitivity and specificity with the most commonly used tests for camel brucellosis. The results of the present study are of paramount importance for designing surveillance and control measures for brucellosis in camel populations.
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Affiliation(s)
- Wissam S. Serhan
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Rashid A. Khan
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Esmat F. Gasim
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Mariam S. Alketbi
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Fabrizio De Massis
- OIE Reference Laboratory for Brucellosis, Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, Campo Boario, 64100 Teramo, Italy; (F.D.M.); (P.C.); (A.G.)
| | - Paolo Calistri
- OIE Reference Laboratory for Brucellosis, Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, Campo Boario, 64100 Teramo, Italy; (F.D.M.); (P.C.); (A.G.)
| | - Armando Giovannini
- OIE Reference Laboratory for Brucellosis, Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, Campo Boario, 64100 Teramo, Italy; (F.D.M.); (P.C.); (A.G.)
| | - Mohamed A. Al Hosani
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Saleha A. Al Jaberi
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Asma M. Al Mansoori
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Asma S. Al Ketbi
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Abdelmalik I. Khalafalla
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
| | - Salama S. Almuhairi
- Veterinary Laboratories Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi 52150, UAE; (W.S.S.); (R.A.K.); (E.F.G.); (M.S.A.); (M.A.A.H.); (S.A.A.J.); (A.M.A.M.); (A.S.A.K.)
- Correspondence: ; Tel.: +971-2-8181410
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