Study registration: *
Publication Chemaitelly H, Nat. Med., 2021
Dates: 2021-03-08 to 2021-05-10
Funding: Public/non profit (Biomedical Research Program, the Biostatistics, Epidemiology, and Biomathematics Research Core and the Genomics Core, all at Weill Cornell Medicine–Qatar, Ministry of Public Health and Hamad Medical Corporation, the Qatar Genome Program)
Conflict of interest: no COI (The authors declare no competing interests.)