Assessing vaccine hesitancy among healthcare providers in Brazil: the influence of vaccine status and professional experience Luiz Gustavo Almeida; Renato de Ávila Kfouri; Natalia Pasternak Taschner; Eduardo Jorge da Fonseca Lima; Ronaldo Pilati;

An update on vaccination in preterm infants Lilian dos Santos Rodrigues Sadeck; Renato de Ávila Kfouri;

Immune system: development and acquisition of immunological competence Maria Isabel de Moraes-Pinto; Fabíola Suano-Souza; Carolina S. Aranda;