Clinical performance evaluation of the Fluorecare? SARS-CoV-2 & Influenza A/B & RSV rapid antigen combo test in symptomatic individuals

被引:14
作者
Bayart, Jean-Louis [1 ]
Gillot, Constant [2 ]
Dogne, Jean-Michel [2 ]
Roussel, Gatien [1 ]
Verbelen, Valerie [1 ]
Favresse, Julien [2 ,3 ]
Douxfils, Jonathan [2 ,4 ]
机构
[1] Clin St Pierre, Dept Lab Med, Ottignies, Belgium
[2] Univ Namur, Namur Res Inst LIfe Sci, Namur Thrombosis & Hemostasis Ctr, Dept Pharm, Namur, Belgium
[3] Clin St Luc Bouge, Dept Lab Med, Namur, Belgium
[4] Qualiblood Sa, Qualires, Namur, Belgium
关键词
Antigen; SARS-CoV-2; Influenza; RSV; Multiplex; Combo; RAD;
D O I
10.1016/j.jcv.2023.105419
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Background: A SARS-CoV-2+Flu A/B+RSV Combo Rapid test may be more relevant than Rapid Antigen Diagnostic (RAD) tests targeting only SARS-CoV-2 since we are facing a concurrent circulation of these viruses during the winter season. Objectives: To assess the clinical performance of a SARS-CoV-2+Flu A/B+RSV Combo test in comparison to a multiplex RT-qPCR. Study Design: Residual nasopharyngeal swabs issued from 178 patients were included. All patients, adults and children, were symptomatic and presented at the emergency department with flu-like symptoms. Characterization of the infectious viral agent was done by RT-qPCR. The viral load was expressed as cycle threshold (Ct). Samples were then tested using the multiplex RAD test Fluorecare (R). SARS-CoV-2 & Influenza A/B & RSV Antigen Combo Test. Data analysis was carried out using descriptive statistics. Results: The sensitivity of the test varies according to the virus, with the highest sensitivity observed for Influenza A (80.8.% [95%CI: 67.2 - 94.4]) and the lowest sensitivity observed for RSV (41.5% [95%CI: 26.2 - 56.8]). Higher sensitivities were observed for samples with high viral loads (Ct < 20) and decrease with low viral loads. The specificity for SARS-CoV-2, RSV and Influenza A and B was >95%. Conclusions: The Fluorecare (R) combo antigenic presents satisfying performance in real-life clinical setting for Influenza A and B in samples with high viral load. This could be useful to allow a rapid (self-)isolation as the transmissibility of these viruses increase with the viral load. According to our results, its use to rule-out SARSCoV-2 and RSV infection is not sufficient.
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页数:3
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