Vaccine coverage against polio myelitis in the city of Fraiburgo - Santa Catarina and its importance for the health of the population. International Seven Journal of Health Research, [S. l.], v. 3, n. 1, p.  266–271, 2024. DOI: 10.56238/isevjhv3n1-025. Disponível em: https://sevenpublicacoes.com.br/ISJHR/article/view/3705. Acesso em: 16 jul. 2025.