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2020 ; 22
(7
): 871-875
Nephropedia Template TP
gab.com Text
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English Wikipedia
Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Is
Comparable in Clinical Samples Preserved in Saline or Viral Transport Medium
#MMPMID32405270
Radbel J
; Jagpal S
; Roy J
; Brooks A
; Tischfield J
; Sheldon M
; Bixby C
; Witt D
; Gennaro ML
; Horton DB
; Barrett ES
; Carson JL
; Panettieri RA Jr
; Blaser MJ
J Mol Diagn
2020[Jul]; 22
(7
): 871-875
PMID32405270
show ga
As the coronavirus disease 2019 (COVID-19) pandemic sweeps across the world, the
availability of viral transport medium (VTM) has become severely limited,
contributing to delays in diagnosis and rationing of diagnostic testing. Given
that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral RNA has
demonstrated stability, we posited that phosphate-buffered saline (PBS) may be a
viable transport medium, as an alternative to VTM, for clinical real-time
quantitative PCR (qPCR) testing. The intra-individual reliability and
interindividual reliability of SARS-CoV-2 qPCR were assessed in clinical
endotracheal secretion samples transported in VTM or PBS to evaluate the
stability of the qPCR signal for three viral targets (N gene, ORF1ab, and S gene)
when samples were stored in these media at room temperature for up to 18 hours.
We report that the use of PBS as a transport medium allows high intra-individual
and interindividual reliability, maintains viral stability, and compares with VTM
in the detection of the three SARS-CoV-2 genes through 18 hours of storage. This
study establishes PBS as a clinically useful medium that can be readily deployed
for transporting and short-term preservation of specimens containing SARS-CoV-2.
Use of PBS as a transport medium has the potential to increase testing capacity
for SARS-CoV-2, aiding more widespread screening and early diagnosis of COVID-19.