The SARS-CoV-2 Viral Load in COVID-19 Patients is Lower on Face Mask Filters than on Nasopharyngeal Swabs

By Agnieszka Smolinska, David S. Jessop, Kirk L. Pappan, Alexandra De Saedeleer, Amerjit Kang, Alexandra L. Martin, Max Allsworth, Charlotte Tyson, Martine P. Bos, Matt Clancy, Mike Morel, Tony Cooke, Tom Dymond, Claire Harris, Jacqui Galloway, Paul Bresser, Nynke Dijkstra, Viresh Jagesar, Paul H. M. Savelkoul, Erik V. H. Beuken, Wesley H.V. Nix, Renaud Louis, Muriel Delvaux, Doriane Calmes, Benoit Ernst, Simona Pollini, Anna Peired, Julien Guiot, Sara Tomassetti, Andries E. Budding, Frank McCaughan, Stefan J. Marciniak, Marc P. van der Schee