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J Clin Microbiol
. 2020 Nov 25;JCM.02811-20.
doi: 10.1128/JCM.02811-20. Online ahead of print.
Clinical performance of the point-of-care cobas Liat for detection of SARS-CoV-2 in 20 minutes: A multicenter study
Glen Hansen 1 , Jamie Marino 2 , Zi-Xuan Wang 3 , Kathleen G Beavis 4 , John Rodrigo 5 , Kylie Labog 1 , Lars F Westblade 2 , Run Jin 3 , Nedra Love 4 , Karen Ding 6 , Sachin Garg 6 , Alan Huang 6 , Joanna Sickler 6 , Nam K Tran 7
Affiliations
- PMID: 33239382
- DOI: 10.1128/JCM.02811-20
Abstract
Background: Highly accurate testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at the point of care (POC) is an unmet diagnostic need in emergency care and time-sensitive outpatient care settings. Reverse transcription-polymerase chain reaction (RT-PCR) technology is the gold-standard for SARS-CoV-2 diagnostics.Methods: We performed a multi-site United States (US) study comparing the clinical performance of the first US Food and Drug Administration (FDA) authorized POC RT-PCR test for detection of SARS-CoV-2 in 20 minutes, the cobas? Liat SARS-CoV-2 & Influenza A/B nucleic acid test, to the most widely used RT-PCR laboratory test, the cobas? 68/8800 SARS-CoV-2 test.Results: Clinical nasopharyngeal swab specimens from 444 patients with 357 evaluable specimens at five US clinical laboratories were enrolled from September 21, 2020 to October 23, 2020. The overall agreement between the Liat and 68/8800 systems for SARS-CoV-2 diagnostics was 98.6% (352/357). Using Liat, positive percent agreement for SARS-CoV-2 was 100% (162/162) and the negative percent agreement was 97.4% (190/195).Conclusion: The Liat is an RT-PCR POC test that provides highly accurate SARS-CoV-2 results in 20 minutes with equivalent performance to high-throughput laboratory molecular testing. Rapid RT-PCR testing at the POC can enable more timely infection control and individual care decisions for Coronavirus Disease 2019.