https://towardsdatascience.com/top-5-r-resources-on-covid-19-coronavirus-1d4c8df6d85f?source=email-bc1148bd8538-1584871416249-digest.reader——0-58——————b667a4ce_f628_4a0f_8ca6_61e417afd433-1-74423165_4718_4a2f_99ed_7a1f1025f705—-&gi=5d1978f4991
https://foreignpolicy.com/2021/08/15/belgium-covid-19-pandemic-vaccination-campaign-model-europe-eu/
https://www.mckinsey.com/business-functions/strategy-and-corporate-finance/our-insights/a-better-way-to-anticipate-downturns?cid=other-eml-cls-mip-mck&hlkid=43c6066168d24ce48770cda86c18e473&hctky=&hdpid=5b2ed585-5c55-4c19-a844-02c1a823aa91