EFFECTIVENESS OF PREVENTIVE VACCINATION STRATEGIES ON REDUCING PEDIATRIC MORBIDITY AND MORTALITY. Journal of Healthcare Systems and Innovations, [S. l.], v. 4, n. 01, p. 18–41, 2026. DOI: 10.66379/jhsi01.2026.40. Disponível em: https://healthsysinnov.com/index.php/JHSI/article/view/40. Acesso em: 11 sep. 2026.