Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
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The 9 references without a DOI — listed, not checked
no DOI — not checkedJohns hopkins University and Medicine. JOHNS HOPKINS CORONAVIRUS RESOURCE CENTER [Internet]. coronavirus resource centre. [cited 2020 Mar 21]. Available from: https://coronavirus.jhu.edu.
no DOI — not checkedLai S, Bogoch II, Watts A, Khan K, Li Z, Tatem A. Preliminary risk analysis of 2019 novel coronavirus spread within and beyond China. Httpswww Worldpop Orgeventschina. 2020-02-03:2020.
no DOI — not checkedZhou Y. Air traffic between China and Africa has jumped 630% in the last decade [Internet]. Quartz Africa. 2019; Available from: https://qz.com/africa/1675287/china-to-africa-flights-jumped-630-in-the-past-nine-years/.
no DOI — not checkedInvestopedia. Investopedia: Top 25 Developed and developing countries [Internet]. Economy. Available from: https://www.investopedia.com/updates/top-developing-countries/#italy.
no DOI — not checkedRemuzzi A, Remuzzi G. COVID-19 and Italy: what next? The Lancet; 2020.
no DOI — not checkedMalvy D, McElroy AK, de Clerck H. Günther S. The Lancet: van Griensven J. Ebola virus disease; 2019.
no DOI — not checkedBaker McKenzie. The impact of COVID-19 on key African sectors [Internet]. 2020 [cited 2020 Mar 21]. Available from: https://www.bakermckenzie.com/en/insight/publications/2020/03/the-impact-of-covid19-on-key-african-sectors.
no DOI — not checkedBBC. WHO head tells Africa to “wake up” to coronavirus threat [Internet]. 2020. Available from: https://www.bbc.com/news/world-africa-51960118.
no DOI — not checkedWHO. Barriers to rapid containment of the Ebola outbreak [Internet]. Barriers to rapid containment of the Ebola outbreak. 2014 [cited 2020 Mar 26]. Available from: https://www.who.int/csr/disease/ebola/overview-august-2014/en/.
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