Prospective Promising Signs of Herd Iimmunity in COVID-19 Transmission Suppression via Vaccination. Global Journal of Medical Research, [S. l.], v. 21, n. C1, p. 27–35, 2021. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/2392. Acesso em: 13 aug. 2026.