IQBAL, M. N. Coronavirus Disease 2019 (COVID-19): Continuing Challenges. International Journal of Molecular Microbiology, [S. l.], v. 3, n. 1, p. 22–24, 2020. Disponível em: https://www.psmjournals.org.aabms.pk/index.php/ijmm/article/view/511. Acesso em: 3 nov. 2026.