DERBIE, A. .; MEKONNEN, D. .; WOLDEAMANUEL, Y. .; ABEBE, T. . Why has Africa reported relatively few COVID-19 cases so far? A web-based survey. The Ethiopian Journal of Health Development , [S. l.], v. 34, n. 4, 2020. Disponível em: https://ejhd.org/index.php/ejhd/article/view/3465. Acesso em: 16 jan. 2021.