Osong Public Health and Research Perspectives

Original Article

Development of a Specific and Rapid Diagnostic Method for Detecting Influenza A (H1N1) pdm09 Virus Infection Using Immunochromatographic Assay: Mi Jung Ji, Byung Ki Cho, Young Shik Cho, Young Jin Choi, Donghyok Kwon, Kyeongcheol Shin, Joo-Yeon Lee, Chun Kang, Byoung Su Yoon; Osong Public Health Res Perspect. 2013;4(6):342-346. Published online December 31, 2013; DOI: https://doi.org/10.1016/j.phrp.2013.10.006

Abstract PDF: Objectives
The aim of this study was to develop an immunochromatographic assay (ICA) for the detection of influenza A (H1N1) pdm09 virus infection. Materials and methods Several monoclonal antibodies against influenza A (H1N1) pdm09 virus were generated and an ICA (pdm09-ICA) was developed for the rapid and specific detection of influenza A (H1N1) pdm09 virus infection. The specificity and sensitivity of the developed assay were compared with that of hemagglutination assay and real-time reverse-transcription polymerase chain reaction (rRT-PCR).
Results
The detection limit was estimated to be 1/2 (8) hemagglutinating unit; the sensitivity and specificity rates of pdm09-ICA were 75.86% (110/145) and 100% (43/43), respectively, compared with rRT-PCR. The cross-reactivity for 20 influenza viruses, including seasonal H1N1 viruses, was found to be negative except for the H1N1 virus (A/Swine/Korea/GC0503/2005).
Conclusion
These results indicate that the proposed method can be easily used for rapid and specific detection of the pdm09 infection. The assay developed in this study would be a useful tool for distinguishing the pdm09 infection from seasonal influenza A and B infections.

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