COVID-19 in Brazil: advantages of a socialized unified health system and preparation to contain cases. SciELO Preprints, 2020. DOI: 10.1590/0037-8682-0167-2020. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/7. Acesso em: 9 fev. 2026.