Study registration: *
Publication Bar-On Y, N Engl J Med, 2021
Dates: 2021-07-30 to 2021-08-26
Funding: Not reported/unclear
Conflict of interest: Yes (All authors declared "I do not have interests to disclosure at this time". The Israeli Ministry of Health and Pfizer have a data-sharing agree- ment, but only the final results of this study )