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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Performance of Various Commercial Assays for the Detection of Toscana Virus Antibodies
Authors: Ergunay, Koray
Litzba, Nadine
Lo, Modou Moustapha
Aydogan, Sibel
Saygan, Mehmet B
Us, Durdal
Weidmann, Manfred
Niedrig, Matthias
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Keywords: Diagnosis
Sandfly fever virus
Toscana virus
Issue Date: Jun-2011
Publisher: Mary Ann Liebert, Inc.
Citation: Ergunay K, Litzba N, Lo MM, Aydogan S, Saygan MB, Us D, Weidmann M & Niedrig M (2011) Performance of Various Commercial Assays for the Detection of Toscana Virus Antibodies, Vector Borne and Zoonotic Diseases, 11 (6), pp. 781-787.
Abstract: Introduction: Sandfly fever virus (SFV) serotypes sandfly fever Naples virus, sandfly fever Sicilian virus, and sandfly fever Cyprus virus cause febrile diseases, whereas Toscana virus (TOSV) is responsible for aseptic meningoencephalitis. Diagnosis and surveillance of TOSV depend heavily on virus serology, and various commercial assays utilizing various antigen sources and formats have been available. The aim of this study was to perform comparative evaluation of commercially available serological assays for anti-TOSV immunoglobulins. Materials and Methods: A collection of 120 sera from healthy blood donors from an endemic region, previously identified to be reactive for antibodies against various SFV serotypes by indirect immunofluorescence test (IIFT), was reevaluated for IgG/IgM via IIFT, enzyme-linked immunosorbent assay, and an immunoblot assay manufactured by Euroimmun, Diesse, and Mikrogen, respectively. Virus neutralization test (VNT) was performed for 99 sera using standard TOSV, sandfly fever Sicilian virus, and sandfly fever Naples virus strains. Results: A total of 89 samples (74.2%) were reactive for TOSV IgG in at least one of the commercial assays, and 31 samples (31.3%) were reactive in VNT for various SFV serotypes. Average percentage agreements among commercial assays and between VNT and the commercial assays were noted as 57.8% and 62.6%, respectively. No significant correlation between assay results and VNT titers was observed. SFV IgM antibodies were detected in a total of eight samples (6.7%) via IIFT, which were nonreactive in enzyme-linked immunosorbent assay and VNT. Discussion: Commercial diagnostic immunoassays displayed slight to fair agreement for TOSV IgG as assessed via kappa and percentage agreement values. The results could only be confirmed via virus neutralization in a portion of the samples, and overall agreement between the commercial assays and VNT was slight. Commercial assays such as immunoblot can be used in addition to VNT for confirmation of TOSV exposure.
Type: Journal Article
DOI Link:
Rights: This is a copy of an article published in the Vector-Borne and Zoonotic Diseases © 2011 copyright Mary Ann Liebert, Inc.; Vector-Borne and Zoonotic Diseases is available online at:
Affiliation: Hacettepe University
Robert Koch Institute
University of Gottingen, Georg-August University
Hacettepe University
Turkish Red Crescent Society
Hacettepe University
Robert Koch Institute

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