An additional three clinical specimens with high Ct values were selected to observe the effect of sample pooling close to the limit of detection of the <i>Xpert</i><sup><i>®</i></sup> <i>Xpress SARS-CoV-2 assay</i>.
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This included two samples provided by the National Microbiology Laboratory and one from the Cadham Provincial Laboratory (CPL), which is a discordant sample not detected by CPL’s Corman RT-qPCR test, but detected as a weak positive by the Xpert® assay. At the six-fold dilution, the weak positive was no longer detected by the assay.
创建时间：
2020-11-09
