Mathematical model analysis on the significance of surveillance and awareness on the transmission dynamics of diphtheria. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 7, n. 4, p. 2618, 2025. DOI: 10.46481/jnsps.2025.2618. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/2618. Acesso em: 2 jul. 2025.