Individuals With SARS-CoV-2 Infection During the First and Second Waves in Catalonia, Spain: Retrospective Observational Study Using Daily Updated Data oleh Lia Alves-Cabratosa, Marc Comas-Cufí, Jordi Blanch, Ruth Martí-Lluch, Anna Ponjoan, Antoni Castro-Guardiola, Abelardo Hurtado-Ganoza, Ana Pérez-Jaén, Maria Rexach-Fumaña, Delfi Faixedas-Brunsoms, Maria Angels Gispert-Ametller, Anna Guell-Cargol, Maria Rodriguez-Batista, Ferran Santaularia-Font, Ramon Orriols, Marc Bonnin-Vilaplana, Juan Carlos Calderón López, Gladis Sabater-Talaverano, Francesc Xavier Queralt Moles, Sara Rodriguez-Requejo, Esteve Avellana-Revuelta, Elisabet Balló, Ester Fages-Masmiquel, Josep-Maria Sirvent, Carol Lorencio, Josep Miquel Morales-Pedrosa, Patricia Ortiz-Ballujera, Rafel Ramos