Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2025
Evaluation of Cepheid Xpert Xpress CoV-2/Flu/RSV plus for nasal and nasopharyngeal specimens tested in CLIA-accredited and CLIA-waived settings.
СтатьяОценочное исследованиеНазвание и аннотация: Перевод в очереди
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McElvania Erin, Rao Deepa, Greninger Alexander L, Harnett Glenn, Larcena Allan, Patel Amrish, Webster Brian, Ulen Christina, Green Dallas F, King Dana, Patel Deepesh Rubin, Jandali Imad, Gibson Jane, Killion Jennifer, Atwi Jibran, Bergmann Kelly R, Slade Lance, Staat Mary Allen, Faron Matthew, Washington Megan, Patel Rahul, Annamalai Rajasekaran, Ackerman Ronald, Stewart William P, Mora Amador Yuliet, Raman Aarthi, Liu Xiaohong
Аннотация
BACKGROUND: Respiratory viruses are responsible for millions of healthcare visits annually. The unpredictable periodicity of Coronavirus disease 2019 and seasonal patterns of influenza and respiratory syncytial virus result in concurrent circulation of these viruses with non-specific and overlapping clinical symptoms.
STUDY DESIGN: This study evaluated the Cepheid Xpert Xpress CoV-2/Flu/RSV plus test using 3011 nasopharyngeal swab (NPS) and 2943 anterior nasal (NS) specimens. The assay was evaluated in CLIA-accredited (CA) laboratories with laboratory trained operators and CLIA-waived (CW) settings with non-laboratory personnel. Results were compared to the BioFire Respiratory Panel 2.1 for SARS-CoV-2 and Hologic Panther Fusion Flu A/B/RSV for influenza A, influenza B, and RSV. Cepheid Xpert Xpress CoV-2/Flu/RSV plus testing of NPS and NS specimens had high positive and negative agreement with reference testing.
RESULTS: Overall agreement for NPS was 98.8 %, 99.1 %, 99.9 %, and 100 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. For NS, overall agreement was 98.7 %, 99.3 %, 99.9 %, and 99.9 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. Specimen testing performed at CA and CW locations also had high positive and negative agreement with reference testing. Overall agreement for CA testing was 97.7 %, 99.6 %, 100 %, and 100 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. For CW testing, overall agreement was 98.8 %, 99.0 %, 99.9 %, and 99.9 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively.
CONCLUSIONS: This study demonstrates that Xpert Xpress CoV-2/Flu/RSV plus provides rapid and accurate results from NPS and NS specimens in CA and CW testing facilities regardless of staff experience with molecular testing.
STUDY DESIGN: This study evaluated the Cepheid Xpert Xpress CoV-2/Flu/RSV plus test using 3011 nasopharyngeal swab (NPS) and 2943 anterior nasal (NS) specimens. The assay was evaluated in CLIA-accredited (CA) laboratories with laboratory trained operators and CLIA-waived (CW) settings with non-laboratory personnel. Results were compared to the BioFire Respiratory Panel 2.1 for SARS-CoV-2 and Hologic Panther Fusion Flu A/B/RSV for influenza A, influenza B, and RSV. Cepheid Xpert Xpress CoV-2/Flu/RSV plus testing of NPS and NS specimens had high positive and negative agreement with reference testing.
RESULTS: Overall agreement for NPS was 98.8 %, 99.1 %, 99.9 %, and 100 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. For NS, overall agreement was 98.7 %, 99.3 %, 99.9 %, and 99.9 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. Specimen testing performed at CA and CW locations also had high positive and negative agreement with reference testing. Overall agreement for CA testing was 97.7 %, 99.6 %, 100 %, and 100 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively. For CW testing, overall agreement was 98.8 %, 99.0 %, 99.9 %, and 99.9 % for SARS-CoV-2, influenza A, influenza B, and RSV, respectively.
CONCLUSIONS: This study demonstrates that Xpert Xpress CoV-2/Flu/RSV plus provides rapid and accurate results from NPS and NS specimens in CA and CW testing facilities regardless of staff experience with molecular testing.