COVID-19 Infection in India: Seropositivity versus the Dynamics of the Spread. European Journal of Medical and Health Sciences, [S. l.], v. 3, n. 4, p. 27–31, 2021. DOI: 10.24018/ejmed.2021.3.4.953. Disponível em: https://mail.ej-med.org/index.php/ejmed/article/view/953. Acesso em: 3 oct. 2025.