SINHA, S.; CHANDRA, R. Herd immunity: basic concepts, epidemiological consideration and its application during pandemic like COVID-19. International Journal Of Community Medicine And Public Health, [S. l.], v. 7, n. 10, p. 4216–4220, 2020. DOI: 10.18203/2394-6040.ijcmph20204400. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/6900. Acesso em: 10 sep. 2025.