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Wellcome Open Res. 2017 Sep 5;2:80. doi: 10.12688/wellcomeopenres.12429.1. eCollection 2017.
Evaluation of the Luminex xTAG Respiratory Viral Panel FAST v2 assay for detection of multiple respiratory viral pathogens in nasal and throat swabs in Vietnam.
Thi Ty Hang V1, Thi Han Ny N1, My Phuc T1, Thi Thanh Tam P1, Thao Huong D1, Dang Trung Nghia H1, Tran Anh Vu N2, Thi Hong Phuong P2, Van Xang N3, Dong N3, Nhu Hiep P4, Van **** N5, Tinh Hien T1,6, Rabaa M1, Thwaites GE1,6, Baker S1,6,7, Van Tan L1, van Doorn HR6,8; VIZIONS consortium.
Author information
Abstract
BACKGROUND:
Acute respiratory infections (ARI) are among the leading causes of hospitalization in children ≤5 years old. Rapid diagnostics of viral pathogens is essential to avoid unnecessary antibiotic treatment, thereby slowing down antibiotic-resistance. We evaluated the diagnostic performance of the Luminex xTAG Respiratory Viral Panel FAST v2 against viral specific PCR as reference assays for ARI in Vietnam.
METHODS:
Four hundred and forty two nose and throat swabs were collected in viral transport medium, and were tested with Luminex xTAG Respiratory Viral Panel FAST v2. Multiplex RT-PCR and single RT-PCR were used as references. Results: Overall, viral pathogens were detected in a total count of 270/294 (91.8%, 95% CI 88.1-94.7) by the Luminex among reference assays, whilst 112/6336 (1.8%, 95% CI, 1.4-2.1) of pathogens were detected by the Luminex, but not by reference assays. Frequency of pathogens detected by Luminex and reference assays was 379 and 292, respectively. The diagnostic yield was 66.7% (295/442, 95%CI 62.1-71.1%) for the Luminex assay and 54.1% (239/442, 95% CI, 49.3-58.8%) for reference assays. The Luminex kit had higher yields for all viruses except influenza B virus, respiratory syncytial virus, and human bocavirus. High agreements between both methods [mean (range): 0.91 (0.83-1.00)] were found for 10/15 viral agents.
CONCLUSIONS:
The Luminex assay is a high throughput multiplex platform for rapid detection of common viral pathogens causing ARI. Although the current high cost may prevent Luminex assays from being widely used, especially in limited resource settings where ARI are felt most, its introduction in clinical diagnostics may help reduce unnecessary use of antibiotic prescription.
KEYWORDS:
Luminex; RVP FAST v2; Vietnam
PMID: 29503874 PMCID: PMC5811805 DOI: 10.12688/wellcomeopenres.12429.1
Evaluation of the Luminex xTAG Respiratory Viral Panel FAST v2 assay for detection of multiple respiratory viral pathogens in nasal and throat swabs in Vietnam.
Thi Ty Hang V1, Thi Han Ny N1, My Phuc T1, Thi Thanh Tam P1, Thao Huong D1, Dang Trung Nghia H1, Tran Anh Vu N2, Thi Hong Phuong P2, Van Xang N3, Dong N3, Nhu Hiep P4, Van **** N5, Tinh Hien T1,6, Rabaa M1, Thwaites GE1,6, Baker S1,6,7, Van Tan L1, van Doorn HR6,8; VIZIONS consortium.
Author information
Abstract
BACKGROUND:
Acute respiratory infections (ARI) are among the leading causes of hospitalization in children ≤5 years old. Rapid diagnostics of viral pathogens is essential to avoid unnecessary antibiotic treatment, thereby slowing down antibiotic-resistance. We evaluated the diagnostic performance of the Luminex xTAG Respiratory Viral Panel FAST v2 against viral specific PCR as reference assays for ARI in Vietnam.
METHODS:
Four hundred and forty two nose and throat swabs were collected in viral transport medium, and were tested with Luminex xTAG Respiratory Viral Panel FAST v2. Multiplex RT-PCR and single RT-PCR were used as references. Results: Overall, viral pathogens were detected in a total count of 270/294 (91.8%, 95% CI 88.1-94.7) by the Luminex among reference assays, whilst 112/6336 (1.8%, 95% CI, 1.4-2.1) of pathogens were detected by the Luminex, but not by reference assays. Frequency of pathogens detected by Luminex and reference assays was 379 and 292, respectively. The diagnostic yield was 66.7% (295/442, 95%CI 62.1-71.1%) for the Luminex assay and 54.1% (239/442, 95% CI, 49.3-58.8%) for reference assays. The Luminex kit had higher yields for all viruses except influenza B virus, respiratory syncytial virus, and human bocavirus. High agreements between both methods [mean (range): 0.91 (0.83-1.00)] were found for 10/15 viral agents.
CONCLUSIONS:
The Luminex assay is a high throughput multiplex platform for rapid detection of common viral pathogens causing ARI. Although the current high cost may prevent Luminex assays from being widely used, especially in limited resource settings where ARI are felt most, its introduction in clinical diagnostics may help reduce unnecessary use of antibiotic prescription.
KEYWORDS:
Luminex; RVP FAST v2; Vietnam
PMID: 29503874 PMCID: PMC5811805 DOI: 10.12688/wellcomeopenres.12429.1