AVUNDAA, Hope; KALU, Eziyi; ENEBELI, Ugo; AMADI, Agwu. Diphtheria in an Under-immunized Child in Rivers State, Nigeria: A Case Report. The Nigerian Health Journal, Nigeria, v. 25, n. 4, p. 1510–1514, 2026. DOI: 10.71637/tnhj.v25i4.1233. Disponível em: https://tnhjph.com/index.php/tnhj/article/view/1233. Acesso em: 29 jan. 2026.