Individuals with covert severe acute respiratory syndrome coronavirus 2 infection: Are they a critical booby-trap?. SciELO Preprints, 2020. DOI: 10.1590/0037-8682-0231-2020. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/612. Acesso em: 11 abr. 2026.