The Lancet
Mar 19, 2022 Volume 399 Number 10330 p1093-1200, e15-e16
https://www.thelancet.com/journals/lancet/issue/current
Effectiveness of the Ad26.COV2.S vaccine in health-care workers in South Africa (the Sisonke study): results from a single-arm, open-label, phase 3B, implementation study
Linda-Gail Bekker, et al. the Sisonke Protocol Team, on behalf of the Sisonke Study Team