RT Journal Article T1 A sensitive and affordable multiplex RT-qPCR assay for SARS-CoV-2 detection A1 Reijns, Martin A. M. A1 Thompson, Louise A1 Acosta, Juan Carlos A1 Black, Holly A. A1 Sanchez-Luque, Francisco J. A1 Diamond, Austin A1 Parry, David A. A1 Daniels, Alison A1 O'Shea, Marie A1 Uggenti, Carolina A1 Sanchez, Maria C. A1 O'Callaghan, Alan A1 McNab, Michelle L. L. A1 Adamowicz, Martyna A1 Friman, Elias T. A1 Hurd, Toby A1 Jarman, Edward J. A1 Chee, Frederic Li Mow A1 Rainger, Jacqueline K. A1 Walker, Marion A1 Drake, Camilla A1 Longman, Dasa A1 Mordstein, Christine A1 Warlow, Sophie J. A1 McKay, Stewart A1 Slater, Louise A1 Ansari, Morad A1 Tomlinson, Ian P. M. A1 Moore, David A1 Wilkinson, Nadine A1 Shepherd, Jill A1 Templeton, Kate A1 Johannessen, Ingolfur A1 Tait-Burkard, Christine A1 Haas, Jürgen G. A1 Gilbert, Nick A1 Adams, Ian R. A1 Jackson, Andrew P. K1 COVID-19 K1 SARS-CoV-2 K1 Multiplex polymerase chain reaction K1 Reacción en cadena de la polimerasa multiplex K1 Reacción en cadena de la polimerasa de transcriptasa inversa K1 Reverse transcriptase polymerase chain reaction K1 ARN, viral K1 RNA, viral K1 Immunologic tests K1 Pruebas inmunológicas K1 Polymerase chain reaction K1 Reacción en cadena de la polimerasa K1 PCR AB With the ongoing COVID-19 (Coronavirus Disease 2019) pandemic, caused by the novel coronavirus SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2), there is a need for sensitive, specific, and affordable diagnostic tests to identify infected individuals, not all of whom are symptomatic. The most sensitive test involves the detection of viral RNA using RT-qPCR (quantitative reverse transcription PCR), with many commercial kits now available for this purpose. However, these are expensive, and supply of such kits in sufficient numbers cannot always be guaranteed. We therefore developed a multiplex assay using well-established SARS-CoV-2 targets alongside a human cellular control (RPP30) and a viral spike-in control (Phocine Herpes Virus 1 [PhHV-1]), which monitor sample quality and nucleic acid extraction efficiency, respectively. Here, we establish that this test performs as well as widely used commercial assays, but at substantially reduced cost. Furthermore, we demonstrate >1,000-fold variability in material routinely collected by combined nose and throat swabbing and establish a statistically significant correlation between the detected level of human and SARS-CoV-2 nucleic acids. The inclusion of the human control probe in our assay therefore provides a quantitative measure of sample quality that could help reduce false-negative rates. We demonstrate the feasibility of establishing a robust RT-qPCR assay at approximately 10% of the cost of equivalent commercial assays, which could benefit low-resource environments and make high-volume testing affordable. PB PLOS YR 2020 FD 2020-12-15 LK http://hdl.handle.net/10668/3427 UL http://hdl.handle.net/10668/3427 LA en NO Reijns MAM, Thompson L, Acosta JC, Black HA, Sanchez-Luque FJ, Diamond A, et al. A sensitive and affordable multiplex RT-qPCR assay for SARS-CoV-2 detection. PLoS Biol. 2020 Dec 15;18(12):e3001030. DS RISalud RD Apr 8, 2025