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;

Mental health difficulties and related factors in Chinese children and adolescents during the COVID-19 pandemic: a cross-sectional study Tongtong Li; Chunhao Li; Guoquan Zhang; Naijian Zhang; Jing Li; Qinghan Ren; Wen Li; Zhenshu Li; Guowei Huang; Jing Yan;

Morbidity trend and space-time clusters of COVID-19 occurrence in children and adolescents Camila Beatriz Alves da Rocha; Lúbia Maieles Gomes Machado; Pãmela Rodrigues de Souza Silva; Bruna Hinnah Borges Martins de Freitas; Iara Denise Endruweit Battisti; Emerson Soares dos Santos; Silvana Margarida Benevides Ferreira;