Evaluation of commercial serological assays in Malaysia for detection of anti-Zika virus antibodies

Khoo, Hooi Yuen and Lee, Hai Yen and Khor, Chee Sieng and Tan, Kim-Kee and AbuBakar, Sazaly (2021) Evaluation of commercial serological assays in Malaysia for detection of anti-Zika virus antibodies. Tropical Biomedicine, 38 (4). pp. 613-621. ISSN 2521-9855, DOI https://doi.org/10.47665/tb.38.4.105.

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The recommended test guidelines for Zika virus (ZIKV) include using both molecular and serological tools. While the molecular tools are useful for detecting acute infection, the serological tools are useful for the detection of previous infections. Nevertheless, detection of ZIKV-specific antibodies remains a challenge due to the high cross-reactivity between ZIKV and other flaviviruses such as dengue virus (DENV) and Japanese encephalitis virus (JEV). The objective of this study is to evaluate the commercially available enzyme-linked immunosorbent assay (ELISA) for the detection of ZIKV IgG. In this study, we evaluated 6 commercially available anti-ZIKV IgG ELISA kits. Pre-characterized serum panels consisting of 70 sera were selected for the evaluation. The diagnostic accuracy of each ELISA kits was determined and compared to the gold standard, Foci Reduction Neutralization Test (FRNT). The present study established that the performance of the NS1-based anti-ZIKV IgG ELISA kit was superior to that which uses of the E protein as antigen. Overall, commercial ZIKV IgG ELISA showed varying test performances, with some achieving moderate to high test sensitivities and specificities. When compared against the FRNT, the test sensitivities ranged from 7.1% to 78.6%, whereas, the test specificities ranged from 40.0% to 100%. Limitation to the study includes the cross reactivity between flavivirus and specificity of the kit in addressing the cross reactivity.

Item Type: Article
Funders: Long Term Research Grant Scheme[LRGS MRUN/F1/01/2018], Higher Institution Centre of Excellent (HICoE) program from the Ministry of Higher Education Malaysia[MO002-2019]
Uncontrolled Keywords: Infectious diseases;Vector-borne diseases;Antibodies;Zika virus;ELISA
Subjects: Q Science > QR Microbiology
R Medicine
R Medicine > RC Internal medicine
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 17 Oct 2022 05:44
Last Modified: 17 Oct 2022 05:44
URI: http://eprints.um.edu.my/id/eprint/35288

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