Congress of Public Health and Epidemiology: actions and reflections in the time of Covid-19 - Arteaga, Óscar; Bertoglia, María Paz; de Orúe, Paula; Fuentes-García, Alejandra; López, Elizabeth; Maddaleno, Matilde; Martínez, Rodrigo (Revista Chilena de Salud Pública, 2021)