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Reverse transcription recombinase polymerase amplification with lateral flow dipsticks for detection of influenza A virus and subtyping of H1 and H3.
- Source :
-
Molecular & Cellular Probes . Dec2018, Vol. 42, p25-31. 7p. - Publication Year :
- 2018
-
Abstract
- Abstract Three reverse transcription recombinase polymerase amplification assays with lateral flow dipsticks (RT-RPA-LFD) were developed for identification of the matrix and hemagglutinin (HA) genes to detect influenza A virus and distinguish subtypes H1 and H3. Assessment of the assays' specificity showed that there was no cross-reactivity with other targets. Their limits of detection were 123.6 copies per reaction for the matrix gene, 677.1 copies per reaction for the H1 HA gene, and 112.2 copies/reaction for the H3 HA gene. Of 111 samples tested by RT-RPA-LFD assays, 27 were positive for influenza A virus, 14 were positive for H1, and 10 were positive for H3. Compared to the results obtained from real-time RT-PCR assays, the sensitivity of RT-RPA-LFD assays was 75%, 93.33% and 71.43% for the matrix, H1, and H3, with 100% specificity. The sensitivity of RT-RPA-LFD assays is lower than that of real-time RT-PCR, comparable or better than that of conventional RT-PCR, and much better than that of RIDTs. In conclusion, these assays offer an efficient and reliable tool for identification and subtyping of influenza A virus (subtype H1 and H3) in the resource-limited setting. Highlights • Three RT-RPA-LFD assays are developed for the detection and subtyping of influenza A virus. • RT-RPA-LFD assays used for the detection of influenza A virus is rapid and sensitive. • The results from RT-RPA-LFD assays are in a good agreement with those from real-time RT-PCR assays. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08908508
- Volume :
- 42
- Database :
- Academic Search Index
- Journal :
- Molecular & Cellular Probes
- Publication Type :
- Academic Journal
- Accession number :
- 132941311
- Full Text :
- https://doi.org/10.1016/j.mcp.2018.10.004