(en) « Preparedness and vulnerability of African countries against importations of COVID-19: a modelling study », The Lancet, vol. 395, no 10227, , p. 871–877 (ISSN0140-6736, DOI10.1016/S0140-6736(20)30411-6, lire en ligne, consulté le )
(en) « Preparedness and vulnerability of African countries against importations of COVID-19: a modelling study », The Lancet, vol. 395, no 10227, , p. 871–877 (ISSN0140-6736, DOI10.1016/S0140-6736(20)30411-6, lire en ligne, consulté le )
(en) « Preparedness and vulnerability of African countries against importations of COVID-19: a modelling study », The Lancet, vol. 395, no 10227, , p. 871–877 (ISSN0140-6736, DOI10.1016/S0140-6736(20)30411-6, lire en ligne, consulté le )