Critical pertussis infection in the paediatric intensive care unit: A case series in an outbreak. Southern African Journal of Critical Care, [S. l.], v. 41, n. 1, p. e2049, 2025. DOI: 10.7196/SAJCC.2025.v41i1.2049. Disponível em: https://samajournals.co.za/index.php/sajcc/article/view/2049. Acesso em: 9 may. 2026.