Demographic, epidemiological and clinical profile of patients with post-COVID syndrome followed at a teaching hospital in Brazil João Paulo Borges de Melo; Alex Eduardo da Silva; Leandro Resende Yamamoto; Taciana Fernandes Araújo Ferreira; Gustavo José Luvizutto; Fernando Freitas Neves; Kelly Cristina Santos; Roger Lopes Batista; Isabel Cunha Santos; Francielle Schiavoni; Mario León Silva-Vergara;

Pulmonary function and exercise capacity six months after hospital discharge of patients with severe COVID-19 Jessica Polese; Alessandro Demoner Ramos; Isac Ribeiro Moulaz; Larissa Sant'Ana; Bárbara Sthefany de Paula Lacerda; Cinthia Eduarda Santos Soares; Karen Evelin Monlevade Lança; Beatriz Paoli Thompson; Germano Paulo Barbosa Júnior; Isabella Izaita Polese Pinto; José Geraldo Mill;

Assessment of initial SARS-CoV-2 seroprevalence in the most affected districts in the municipality of São Paulo, Brazil Beatriz Helena Tess; Celso Francisco Hernandez Granato; Maria Cecília Goi Porto Alves; Maria Carolina Tostes Pintão; Marcia Cavallari Nunes; Edgar Gil Rizzatti; Fernando de Castro Reinach;