Multiplex qPCR discriminates variants of concern to enhance global surveillance of SARS-CoV-2. by Chantal B F Vogels, Mallery I Breban, Isabel M Ott, Tara Alpert, Mary E Petrone, Anne E Watkins, Chaney C Kalinich, Rebecca Earnest, Jessica E Rothman, Jaqueline Goes de Jesus, Ingra Morales Claro, Giulia Magalhães Ferreira, Myuki A E Crispim, Brazil-UK CADDE Genomic Network, Lavanya Singh, Houriiyah Tegally, Ugochukwu J Anyaneji, Network for Genomic Surveillance in South Africa, Emma B Hodcroft, Christopher E Mason, Gaurav Khullar, Jessica Metti, Joel T Dudley, Matthew J MacKay, Megan Nash, Jianhui Wang, Chen Liu, Pei Hui, Steven Murphy, Caleb Neal, Eva Laszlo, Marie L Landry, Anthony Muyombwe, Randy Downing, Jafar Razeq, Tulio de Oliveira, Nuno R Faria, Ester C Sabino, Richard A Neher, Joseph R Fauver, Nathan D Grubaugh