Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?

Introduction: Diagnosis of brucellosis in Syria is based on the presence of compatible symptoms in addition to positive agglutination results. This study investigated the potential of culture, ELISA and real-time PCR to support the diagnosis in different clinical manifestations of brucellosis. Met...

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Main Authors: Yara Alsayed, Fawza Monem
Format: Article
Language:English
Published: The Journal of Infection in Developing Countries 2012-05-01
Series:Journal of Infection in Developing Countries
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Online Access:https://jidc.org/index.php/journal/article/view/2453
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author Yara Alsayed
Fawza Monem
author_facet Yara Alsayed
Fawza Monem
author_sort Yara Alsayed
collection DOAJ
description Introduction: Diagnosis of brucellosis in Syria is based on the presence of compatible symptoms in addition to positive agglutination results. This study investigated the potential of culture, ELISA and real-time PCR to support the diagnosis in different clinical manifestations of brucellosis. Methodology: Peripheral blood samples from 34 suspected brucellosis patients and 42 probable chronic or relapsed brucellosis patients were tested by agglutination tests, culture, ELISA and real-time PCR. Results: Among 34 samples collected from suspected cases, 18/34 (53%) were agglutination tests positive, 12/34 (35%) were culture positive, 12/34 (35%) were Brucella IgG positive, and 10/34 (29%) were real-time PCR positive. Three out of 34 patients were positive by real-time PCR but not by agglutination tests or culture. Among 42 samples obtained from probable chronic or relapsed patients, 27/42 (64%) were agglutination tests positive, 26/42 (62%) were Brucella IgG positive, 4/42 (10%) were culture positive, and 1/42 (2%) was real-time PCR positive. Conclusion: To rule in or rule out the diagnosis of brucellosis, a combination of several tests should be applied. Agglutination tests should be performed first considering their high sensitivity. If the agglutination test is negative, real-time PCR, and/or ELISA, and/or culture should be performed. When relapse or chronic brucellosis are suspected, agglutination tests and/or ELISA are recommended.
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spelling doaj-art-320950a54b00403588e02b339b5fcd0c2025-08-20T02:27:18ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802012-05-0160610.3855/jidc.2453Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?Yara Alsayed0Fawza Monem1Faculty of Pharmacy, Damascus University, Damascus, SyriaAL-Assad Hospital, Damascus University, P.O. Box 10769, Damascus, SyriaIntroduction: Diagnosis of brucellosis in Syria is based on the presence of compatible symptoms in addition to positive agglutination results. This study investigated the potential of culture, ELISA and real-time PCR to support the diagnosis in different clinical manifestations of brucellosis. Methodology: Peripheral blood samples from 34 suspected brucellosis patients and 42 probable chronic or relapsed brucellosis patients were tested by agglutination tests, culture, ELISA and real-time PCR. Results: Among 34 samples collected from suspected cases, 18/34 (53%) were agglutination tests positive, 12/34 (35%) were culture positive, 12/34 (35%) were Brucella IgG positive, and 10/34 (29%) were real-time PCR positive. Three out of 34 patients were positive by real-time PCR but not by agglutination tests or culture. Among 42 samples obtained from probable chronic or relapsed patients, 27/42 (64%) were agglutination tests positive, 26/42 (62%) were Brucella IgG positive, 4/42 (10%) were culture positive, and 1/42 (2%) was real-time PCR positive. Conclusion: To rule in or rule out the diagnosis of brucellosis, a combination of several tests should be applied. Agglutination tests should be performed first considering their high sensitivity. If the agglutination test is negative, real-time PCR, and/or ELISA, and/or culture should be performed. When relapse or chronic brucellosis are suspected, agglutination tests and/or ELISA are recommended. https://jidc.org/index.php/journal/article/view/2453brucellosisagglutination testsculturereal-time PCRELISASyria
spellingShingle Yara Alsayed
Fawza Monem
Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
Journal of Infection in Developing Countries
brucellosis
agglutination tests
culture
real-time PCR
ELISA
Syria
title Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
title_full Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
title_fullStr Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
title_full_unstemmed Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
title_short Brucellosis laboratory tests in Syria: what are their diagnostic efficacies in different clinical manifestations?
title_sort brucellosis laboratory tests in syria what are their diagnostic efficacies in different clinical manifestations
topic brucellosis
agglutination tests
culture
real-time PCR
ELISA
Syria
url https://jidc.org/index.php/journal/article/view/2453
work_keys_str_mv AT yaraalsayed brucellosislaboratorytestsinsyriawhataretheirdiagnosticefficaciesindifferentclinicalmanifestations
AT fawzamonem brucellosislaboratorytestsinsyriawhataretheirdiagnosticefficaciesindifferentclinicalmanifestations