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How many are we missing with ID NOW COVID-19 assay using direct nasopharyngeal swabs? – Findings from a mid-sized academic hospital clinical microbiology laboratory
editorial
4 July 2020
LDT, laboratory-developed test,
FDA, Food and Drug Administration,
EUA, Emergency Use Authorization,
NP, nasopharyngeal,
VTM, viral transport medium,
NPS-VTM, nasopharyngeal swabs in viral transport medium,
dNPS, direct dry nasopharyngeal swabs,
COVID-19, coronavirus disease 2019,
SARS-CoV-2, severe acute respiratory syndrome coronavirus 2,
PPA, positive percent agreement,
NPA, negative percent agreement,
OPA, overall percent agreement,
SARS-CoV-2,
COVID-19, Abbott ID NOW,
Dry nasopharyngeal swab
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Abstract
Here, we retrospectively analyzed the comparative results of 182 paired dry nasopharyngeal swabs tested by Abbott ID NOW and nasopharyngeal swabs in viral transport medium by real-time RT-PCR methods. While the overall agreement was 96.2%, we found that of 15 samples that were tested positive with RT-PCR methods, 7 were missed by ID NOW, resulting in a false-negative rate of 47%.
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Author and article information
ldt, laboratory-developed test,fda, food and drug administration,eua, emergency use authorization,np, nasopharyngeal,vtm, viral transport medium,nps-vtm, nasopharyngeal swabs in viral transport medium,dnps, direct dry nasopharyngeal swabs,covid-19, coronavirus disease 2019,sars-cov-2, severe acute respiratory syndrome coronavirus 2,ppa, positive percent agreement,npa, negative percent agreement,opa, overall percent agreement,sars-cov-2,covid-19, abbott id now,dry nasopharyngeal swab
ldt, laboratory-developed test, fda, food and drug administration, eua, emergency use authorization, np, nasopharyngeal, vtm, viral transport medium, nps-vtm, nasopharyngeal swabs in viral transport medium, dnps, direct dry nasopharyngeal swabs, covid-19, coronavirus disease 2019, sars-cov-2, severe acute respiratory syndrome coronavirus 2, ppa, positive percent agreement, npa, negative percent agreement, opa, overall percent agreement, sars-cov-2, covid-19, abbott id now, dry nasopharyngeal swab