SEIRS research map COVID-19 vaccines: analysis of trends, findings, and challenges of mathematical models. Perspectives in Mathematics and Applications, [S. l.], v. 1, n. 02, p. 34–45, 2025. Disponível em: https://jurnal.kreasipustaka.com/index.php/permata/article/view/25. Acesso em: 27 dec. 2025.