SARS-CoV-2 and dialysis: humoral response, clinical and laboratory impacts before vaccination Alanna Calheiros Santos; Vanessa Duarte da Costa; Lucas Lima da Silva; Juliana Custódio Miguel; Rodrigo Jardim; Alberto Martín Rivera Dávila; Vanessa Salete de Paula; Juliana Gil Melgaço; Barbara Vieira do Lago; Livia Melo Villar;

Measles, rubella, mumps and Toxoplasma gondii antibodies in saliva of vaccinated students of schools and universities in São Paulo City, Brazil Barbara Carvalho Fialho Sampaio; Jaqueline Polizeli Rodrigues; Luciana Regina Meireles; Heitor Franco de Andrade Junior;

High prevalence of 19A pneumococcal serotype carriage during the COVID-19 pandemic in Brazil Muriel Primon-Barros; Fernanda Hammes Varela; Márcia Polese-Bonatto; Ivaine Tais Sauthier Sartor; Thais Raupp Azevedo; Caroline Nespolo de David; Maiko Luis Tonini; Renato T. Stein; Marcelo Comerlato Scotta; Cícero Armídio Gomes Dias;