Immunothrombosis and COVID-19 ¿ a nested post-hoc analysis from a 3186 patient cohort in a Latin American public reference hospital Clarice Antunes de Lima; Fabio Augusto Rodrigues Gonçalves; Bruno Adler Maccagnan Pinheiro Besen; Antônio José Rodrigues Pereira; Sandro Félix Perazzio; Evelinda Marramon Trindade; Luiz Augusto Marcondes Fonseca; Nairo Massakazu Sumita; Vanusa Barbosa Pinto; Alberto José da Silva Duarte; Carolina Broco Manin; Arnaldo Lichtenstein;

Impact of SARS-CoV-2 on pregnancy and neonatal outcomes: An open prospective study of pregnant women in Brazil Ursula Trovato Gomez; Rossana Pulcineli Vieira Francisco; Fernanda Spadotto Baptista; Maria Augusta B.C. Gibelli; Silvia Maria Ibidi; Werther Brunow de Carvalho; Cristiane de Freitas Paganoti; Ester Cerdeira Sabino; Lea Campos de Oliveira da Silva; Thomas Jaenisch; Philippe Mayaud; Maria de Lourdes Brizot;

Absence of neutralizing antibodies against the Omicron SARS-CoV-2 variant in convalescent sera from individuals infected with the ancestral SARS-CoV-2 virus or its Gamma variant Lucy Santos Villas-Boas; Anderson Vicente de Paula; Almir Ribeiro da Silva; Heuder Gustavo Oliveira Paiao; Tania Regina Tozetto-Mendoza; Erika Regina Manuli; Fábio Eudes Leal; Andrea de Barros Coscelli Ferraz; Ester Cerdeira Sabino; Ana Luiza Bierrenbach; Steven Sol Witkin; Maria Cassia Mendes-Correa;