Stool samples versus nasopharyngeal specimens for the initial diagnosis of SARS‐CoV‐2 infection
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DOI: 10.1002/jmv.26923
Abstract: Abstract Some practionners are tempted to use stool samples, as an easier alternative to nasopharyngeal specimens (NPS) for initial diagnosis of COVID‐19. This report shows that stool samples cannot be used as alternative to NPS… read more here.
Keywords: samples versus; stool samples; initial diagnosis; nasopharyngeal specimens ... See more keywords
SARS‐CoV‐2 RNA load in nasopharyngeal specimens from outpatients with breakthrough COVID‐19 due to Omicron BA.1 and BA.2
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DOI: 10.1002/jmv.28079
Abstract: This retrospective observational study compared severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) RNA load in nasopharyngeal specimens (NPs) from patients with breakthrough coronavirus disease 2019 (COVID‐19) caused by the Omicron BA.1 or BA.2 sublineages. The… read more here.
Keywords: rna load; nasopharyngeal specimens; cov rna; load nasopharyngeal ... See more keywords
Detection of SARS-CoV-2 RNA by direct RT-qPCR on nasopharyngeal specimens without extraction of viral RNA
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DOI: 10.1371/journal.pone.0236564
Abstract: To circumvent the limited availability of RNA extraction reagents, we aimed to develop a protocol for direct RT-qPCR to detect SARS-CoV-2 in nasopharyngeal swabs without RNA extraction. Nasopharyngeal specimens positive for SARS-CoV-2 and other coronaviruses… read more here.
Keywords: extraction; cov rna; nasopharyngeal specimens; approach ... See more keywords
Evaluation of rapid SARS-CoV-2 antigen tests, AFIAS COVID-19 Ag and ichroma COVID-19 Ag, with serial nasopharyngeal specimens from COVID-19 patients
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DOI: 10.1371/journal.pone.0249972
Abstract: We evaluated the diagnostic accuracy of two newly developed, point-of-care, rapid antigen tests (RATs) for detecting SARS-CoV-2, the AFIAS COVID-19 Ag and the ichromaTM COVID-19 Ag, and investigated antigen kinetics. A total of 200 serially… read more here.
Keywords: nasopharyngeal specimens; antigen; days pso; antigen tests ... See more keywords