New Brazilian variant of the SARS-CoV-2 (P1/Gamma) of COVID-19 in Alagoas state José Claudio da Silva; Valtuir Barbosa Félix; Sura Amélia Barbosa Felix Leão; Euclides Maurício Trindade-Filho; Fulvio Alexandre Scorza;

Real-world accuracy of SARS-CoV-2 antigen detection compared with qPCR: A cross-sectional study in Toledo - PR, Brazil Carla Adriane Royer; Regis Goulart Rosa; Maicon Falavigna; Jaqueline Carvalho de Oliveira;

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;