Prepandemic levels of cytokines and immunoglobulins and risk of SARS-CoV-2 infection and COVID-19 in the general population of Barcelona - Porta,M.; Pumarega,J.; Aguilar,R.; Prieto-Merino,D.; Campi,L.; Rius,C.; Villar-García,J.; Vidal,M.; Jimenez,A.; Peña,A.; Muñoz,M.-Á.; Trasande,L.; et al. (Frontiers in Public Health, 2025)