Investigating transmission of SARS-CoV-2 using novel face mask sampling: a protocol for an observational prospective study of index cases and their contacts in a congregate setting oleh Daniel Olson, Stephanie James, Thomas Jaenisch, Stephen Berman, Molly M Lamb, Emily N Gallichotte, Brian Adams, Charles Henry, Jeannine Riess, Joni Triantis van Sickle, Kellie L Hawkins, Brian T Montague, Cody Coburn, Leisha Conners Bauer, Jennifer Kovarik, Mark T Hernandez, Amy Bronson, Lucy Graham, Stephanie Hanenberg, James Kovacs, John S Spencer, Mark Zabel, Philip D Fox, Olivia Pluss, William Windsor, Geoffrey Winstanley, Michael Barer, Gregory Ebel, May Chu