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We report the performance of a variety of commercially available SARS-CoV-2 PCR kits, used in several different sites across Ireland to determine if C values across platforms are comparable. We also investigate whether a C value, a surrogate for calculated viral loads in the absence of viral culture of > 34 can be used to exclude SARS-CoV-2 infection and its complications. We found a variation in Cvalues from different assays for the same calculated viral load; this should be taken into consideration for result interpretation.


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