Covid-19 Living Data

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 )

Methods
Methods	Study design:Cohort Description of participants: Israel residents 60 years of age or older who had been fully vaccinated at least 5 months earlier Inclusion criteria: Israeli resident 60 years of age or older fully vaccinated (i.e., re- ceived two doses of BNT162b2) at least 5 months earlier (i.e., before March 1, 2021) were alive on July 30, 2021 Exclusion criteria: participants who had missing data regarding sex were abroad in August 2021 had received a diag- nosis of PCR-positive Covid-19 before July 30, 2021 had received a booster dose before July 30, 2021 or had been fully vaccinated before January 16, 2021. Follow-up duration (months): 0.88
Vaccines:	2 doses of either BNT162b2
Variant description :
Variant description :	Variant name: Delta Evidence: Indirect evidence (prevalence of variant in the population: 90 to 95%)
Documents available	Protocol Yes. In English Statistical plan Yes Data-sharing stated: Yes Data accessibility: https://github.com/yairgoldy/BNT162b2_booster_dose
General comment	Concerns about uncontrolled confounding.