MATHEMATICAL ANALYSIS OF A RISK STRUCTURED LISTERIOSIS DYNAMICS MODEL. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 9, n. 3, p. 302–308, 2025. DOI: 10.33003/fjs-2025-0903-3259. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/3259. Acesso em: 2 sep. 2025.