1. E.J. Williamson, A.J. Walker, K. Bhaskaran, S. Bacon, C. Bates, C.E. Morton, H.J. Curtis, A. Mehrkar, D. Evans, P. Inglesby, J. Cockburn, “Factors associated with COVID-19-related death using Open Safely”, Nature, 584 (2020) 430
2. X. Yewwei, W. Zaisheng, L. Huipeng, M. Gifty, W. Dan, T. Weiming, “Epidemiologic, clinical and laboratory findings of the COVID-19 in the current pandemic: systematic review and meta-analysis”, BMC Infectious Diseases (2020) 1.
3. F. Zakaria, A. F. Filali, “The COVID-19: macroeconomics scenario and role of containment in Morocco”, One Health, 10 (2020) 100152.
4. Q. Li, X. Guan, P. Wu, X. Wang, L. Zhou, Y. Tong, R. Ren, K.S. Leung, E.H. Lau, J.Y. Wong, X. Xing, “Early transmission dynamics in Wuhan, China, of novel coronavirus-infected pneumonia”, N. Engl. J. Med, 382 (2020) 1199.
5. S. Roush, H. Fast, C.E. Miner, H. Vins, L. Baldy, R. McNall, S. Kang, V. Vund, “National Center for Immunization and Respiratory Diseases (NCIRD) Support for Modernization of the Nationally Notifiable Diseases Surveillance System (NNDSS) to Strengthen Public Health Surveillance Infrastructure in the US. In 2019”, CSTE Annual Conference. CSTE