Stability and Persistence of an Age Structured Epidemic Model with Mutation and Vaccination. CSIAM Transactions on Life Sciences, [S. l.], v. 1, n. 3, p. 438–465, 2025. DOI: 10.4208/csiam-ls.SO-2024-0010. Disponível em: https://www.global-sci.com/index.php/csiam-ls/article/view/22977. Acesso em: 5 dec. 2025.