Self-Reported Symptoms of SARS-CoV-2 Infection in a Nonhospitalized Population in Italy: Cross-Sectional Study of the EPICOVID19 Web-Based Survey

Fulvio Adorni   ^{1 *} , MPH ;   Federica Prinelli   ^{1 *} , PhD ;   Fabrizio Bianchi   ² , PhD ;   Andrea Giacomelli   ³ , MD ;   Gabriele Pagani   ³ , MD ;   Dario Bernacchia   ³ , MD ;   Stefano Rusconi   ³ , MD ;   Stefania Maggi   ⁴ , MD, PhD ;   Caterina Trevisan   ^{4, 5} , MD ;   Marianna Noale   ⁴ , MSc ;   Sabrina Molinaro   ⁶ , PhD ;   Luca Bastiani   ⁶ , PhD ;   Loredana Fortunato   ⁶ , MSc ;   Nithiya Jesuthasan   ¹ , MPH ;   Aleksandra Sojic   ¹ , PhD ;   Carla Pettenati   ¹ , MD ;   Marcello Tavio   ⁷ , MD ;   Massimo Andreoni   ⁸ , MD ;   Claudio Mastroianni   ⁹ , MD ;   Raffaele Antonelli Incalzi   ¹⁰ , MD ;   Massimo Galli   ³ , MD

¹ Epidemiology Unit, Institute of Biomedical Technologies, National Research Council, Segrate (MI), Italy

² Department of Environmental Epidemiology and Disease Registries, Institute of Clinical Physiology, National Research Council, Pisa, Italy

³ Infectious Diseases Unit, Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy

⁴ Aging Branch, Neuroscience Institute, National Research Council, Padoa, Italy

⁵ Geriatric Unit, Department of Medicine (DIMED), University of Padova, Padoa, Italy

⁶ Epidemiology and Health Research Laboratory, Institute of Clinical Physiology, National Research Council, Pisa, Italy

⁷ Division of Infectious Diseases, Azienda Ospedaliero Universitaria Ospedali Riuniti, Ancona, Italy

⁸ Infectious Diseases Clinic, Department of System Medicine, Tor Vergata University of Rome, Rome, Italy

⁹ Public Health and Infectious Disease Department, Sapienza University, Rome, Italy

¹⁰ Unit of Geriatrics, Department of Medicine, Biomedical Campus of Rome, Rome, Italy

*these authors contributed equally