Performance characteristics of two real-time TaqMan polymerase chain reaction assays for the detection of WSSV in clinically diseased and apparently healthy prawns
| العنوان: | Performance characteristics of two real-time TaqMan polymerase chain reaction assays for the detection of WSSV in clinically diseased and apparently healthy prawns |
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| المؤلفون: | Nicholas J G, Moody, Peter G, Mohr, Lynette M, Williams, David M, Cummins, John, Hoad, Joanne, Slater, Stacey T, Valdeter, Axel, Colling, Nagendrakumar B, Singanallur, Ian A, Gardner, Nicholas, Gudkovs, Mark St J, Crane |
| المصدر: | Diseases of Aquatic Organisms. 150:169-182 |
| بيانات النشر: | Inter-Research Science Center, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | White spot syndrome virus 1, Decapoda, Australia, Animals, Reproducibility of Results, Bayes Theorem, Aquatic Science, Real-Time Polymerase Chain Reaction, Sensitivity and Specificity, Ecology, Evolution, Behavior and Systematics |
| الوصف: | This study aimed to generate data on performance characteristics for 2 real-time TaqMan PCR assays (CSIRO and WOAH WSSV qPCRs) for the purposes of (1) detection of white spot syndrome virus (WSSV) in clinically diseased prawns and (2) detection of WSSV in apparently healthy prawns. Analytical sensitivity of both assays was 2 to 20 genome copies per reaction, and analytical specificity was 100% after testing nucleic acid from 9 heterologous prawn pathogens and 4 prawn species. Results obtained after testing more than 20 000 samples in up to 559 runs with the CSIRO WSSV qPCR and up to 293 runs with the WOAH WSSV qPCR demonstrated satisfactory repeatability for both assays. Both assays demonstrated median diagnostic sensitivity (DSe) 100% (95% CI: 94.9-100%) when testing clinically diseased prawns. When 1591 test results from apparently healthy prawns were analysed by Bayesian latent class analysis, median DSe and diagnostic specificity (DSp) were 82.9% (95% probability interval [PI]: 75.0-90.2%) and 99.7% (95% PI: 98.6-99.99%) for the CSIRO WSSV qPCR and 76.8% (95% PI: 68.9-84.9%) and 99.7% (95% PI: 98.7-99.99%) for the WOAH WSSV qPCR. When both assays were interpreted in parallel, median DSe increased to 98.3 (95% PI: 91.6-99.99%), and median DSp decreased slightly to 99.4% (95% PI: 97.9-99.99%). Routine testing of quantified positive controls by laboratories in the Australian laboratory network demonstrated satisfactory reproducibility of the CSIRO WSSV qPCR assay. Both assays demonstrated comparable performance characteristics, and the results contribute to the validation data required in the WOAH validation pathway for the purposes of detection of WSSV in clinically diseased and apparently healthy prawns. |
| تدمد: | 1616-1580 0177-5103 |
| DOI: | 10.3354/dao03687 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d07288606ee3fb631067a5df413a311e https://doi.org/10.3354/dao03687 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....d07288606ee3fb631067a5df413a311e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16161580 01775103 |
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| DOI: | 10.3354/dao03687 |