Affiliation:
1. National Public Health Laboratory
2. Tribhuvan University
Abstract
Abstract
Background: This study is cross-sectional and consecutive study carried out to find out the sensitivity and specificity of QuickVue rapid influenza diagnostic kit test with reference to real time RT-PCR.This study was conducted at National Influenza Center, Reference Laboratory, National Public Health Laboratory, Teku, Kathmandu. This study was undertaken in individuals having Influenza like illness visiting National Public Health Laboratory. Material & Methods: A total of 1683 throat swab specimens, obtained from patients with Influenza like Illness (ILI) at National Influenza Surveillance Network (NISN) sentinel hospitals, were transported to National Influenza Center, maintaining reverse cold chain, within 48 hours. Viral RNA was extracted using QIAmp viral RNA kit. Polymerase Chain Reaction assay (PCR) was performed following CDC Real-time rRTPCR protocol for detection and characterization of the influenza viruses including pandemic influenza virus A (H1N1) pdm 09. Samples were tested with quick view rapid test.Results: A total 1683 samples were processed for influenza testing by RDTQuickVue Influenza A+Band PCR simultaneously. Among 1683 samples 491 were positive by rapid testing and PCR as well. Whereas 122 were positive only by PCR. And out of 1520 negative samples, 1508 were negative by rapid testing & PCR as well and 12 were negative only by the PCR. Conclusion: In our study it shows overallgood positivepredictive and negative predictive value help to provide about influenza in quickly as point of care testing that help in the clinical management of the patient in the outbreak with less trained manpower and cost-effective kits. However more data and test need to be done to evaluate the clinical performance of RDT for influenza diagnosis on extrapolated to other age group & clinical information for specific symptoms and severity is require.
Publisher
Research Square Platform LLC