Seroprevalence and risk factors of exposure to COVID-19 in homeless people in Paris, France: a cross-sectional study oleh Thomas Roederer, MSc, Bastien Mollo, MD, Charline Vincent, MSc, Birgit Nikolay, PhD, Augusto E Llosa, PhD, Robin Nesbitt, PhD, Jessica Vanhomwegen, PhD, Thierry Rose, PhD, Sophie Goyard, PhD, François Anna, PhD, Corinne Torre, MSc, Emilie Fourrey, MPH, Erica Simons, MPh, William Hennequin, MSc, Clair Mills, MD, Francisco J Luquero, PhD