Background Detection of SARS-CoV-2 infections relies on the use of sensitive, accurate and high throughput RT-PCR assays. Objectives We assessed the analytical performance of the Abbott RealTi m e SARS-CoV-2 (RT-SARS), Alinity m SARS-CoV-2 (AlinSARS) assays and compared the clinical performance of the RT-SARS, AlinSARS, and Alinity m Resp-4-Plex (Alin4Plex) assays to the Seegene Allplex assay (Allplex) and an inhouse test (Inhouse). Results We found 100 % positive percent agreement (PPA) and 100 % negative percent agreement (NPA) comparing RT-SARS and Allplex. RT-SARS, AlinSARS and Inhouse showed 100 % NPA and 100 % PPA across all assays, except for the RdRp target of Inhouse (PPA = 84 %). Similarly, Alin4Plex and Allplex showed high agreement with specimens containing either SARS-CoV-2, influenza A, influenza B, or RSV. Detection rates of 100 % for SARS-CoV-2 at 50 copies/mL, high precision, and no cross-reactivity with non-SARS-CoV-2 respiratory pathogens were observed for RT-SARS and AlinSARS. AlinSARS detected SARS-CoV-2 in spiked throat washes and in specimens infected with SARS-CoV-2 Alpha or Beta variants. Conclusions The newly developed RT-SARS, AlinSARS, and Alin4Plex assays proved to be useful for detecting SARS-CoV-2 RNA in clinical samples.
【저자키워드】 SARS-CoV-2, Real-time PCR, multiplex, turnaround time, Alinity m, 【초록키워드】 SARS-COV-2 infection, detection, influenza A, variants, cross-reactivity, clinical samples, RSV, RdRP, Beta, SARS-CoV-2 RNA, influenza B, Abbott, Precision, respiratory pathogen, specimen, RT-PCR assays, positive, objective, Result, assays, infected with SARS-CoV-2, 【제목키워드】 clinical, automated, Abbott,