Patrícia Blau Margosian Conti1, Mauro Alexandre Pascoa2, Maria Ângela Gonçalves de Oliveira Ribeiro1, Carla Cristina Souza Gomez1, Aline Priscila de Souza1, Tayná Castilho1, Gil Guerra-Junior2, Daniela Souza Paiva Borgli1, Eulalia Sakano1, Silvana Dalge Severino1, José Dirceu Ribeiro1, the UNICOVIDS Study Group*