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Validation Study
- Comparison of JEV Neutralization Assay Using Pseudotyped JEV with the Conventional Plaque-Reduction Neutralization Test
- Hee-Jung Lee , Kyung-Il Min , Ki Hoon Park , Hyo Jung Choi , Min-Kyoung Kim , Chi-Young Ahn , Young-Jin Hong , Young Bong Kim
- J. Microbiol. 2014;52(5):435-440. Published online March 7, 2014
- DOI: https://doi.org/10.1007/s12275-014-3529-y
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Abstract
- We previously reported the development of a neutralization assay system for evaluating Japanese Encephalitis Virus (JEV) neutralizing antibody (NAb) using pseudotyped-JEV (JEV- PV). JEV-PV-based neutralization assay offers several advan-tages compared with the current standard plaque-reduc-tion neutralization test (PRNT), including simplicity, safety, and speed. To evaluate the suitability of the JEV-PV assay as new replacement neutralization assay, we compared its repeatability, reproducibility, specificity, and correlated its results with those obtained using the PRNT. These analyses showed a close correlation between the results obtained with the JEV-PV assay and the PRNT, using the 50% plaque re-duction method as a standard for measuring NAb titers to JEV. The validation results met all analytical acceptance criteria. These results suggest that the JEV-PV assay could serve as a safe and simple method for measuring NAb titer against JEV and could be used as an alternative approach for assaying the potency of JEV neutralization.
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Citations
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