id author title date pages extension mime words sentences flesch summary cache txt cord-026099-97luq10a Kok, J Response to correspondence received on our paper:Interpret with caution: an evaluation of the commercial AusDiagnostics versus in-house developed assays for the detection of SARS-CoV-2 virus 2020-06-05 .txt text/plain 761 42 54 title: Response to correspondence received on our paper:Interpret with caution: an evaluation of the commercial AusDiagnostics versus in-house developed assays for the detection of SARS-CoV-2 virus We reported that the sensitivity, specificity, positive predictive value (PPV) and negative predictive value of the AusDiagnostics RUO assay was 100%, 92.16%, 55.56% and 100%, respectively when compared to our RT-PCR assay. Even if the specificity of the AusDiagnostics RUO assay was 99% (i.e. a 1% false positive rate), given the current prevalence of COVID-19 infection in NSW of 0.84%, the calculated PPV of the assay would be 54.15%, which is concordant with our findings. Cohen et al also estimated false positive rates of up to 7% in commercial diagnostics assays detecting SARS-CoV-2 [Cohen] . Furthermore, false positive RT-PCR results have also been reported from commercial kits that have been contaminated with SARS-CoV-2 sequences [Bustin] . Interpret with caution: An evaluation of the commercial AusDiagnostics versus in-house developed assays for the detection of SARS-CoV-2 virus ./cache/cord-026099-97luq10a.txt ./txt/cord-026099-97luq10a.txt