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.
Bekker LG, Garrett N, Goga A, Fairall L, Reddy T, Yende-Zuma N, Kassanjee R, Collie S, Sanne I, Boulle A, Seocharan I, Engelbrecht I, Davies MA, Champion J, Chen T, Bennett S, Mametja S, Semenya M, Moultrie H, de Oliveira T, Lessells RJ, Cohen C, Jassat W, Groome M, Von Gottberg A, Le Roux E, Khuto K, Barouch D, Mahomed H, Wolmarans M, Rousseau P, Bradshaw D, Mulder M, Opie J, Louw V, Jacobson B, Rowji P, Peter JG, Takalani A, Odhiambo J, Mayat F, Takuva S, Corey L, Gray GE; Sisonke Protocol Team; Sisonke Study Team.
Bekker LG, et al.
Lancet. 2022 Mar 19;399(10330):1141-1153. doi: 10.1016/S0140-6736(22)00007-1.
Lancet. 2022.
PMID: 35305740
Free PMC article.
During the course of the study, the beta (B.1.351) and then the delta (B.1.617.2) SARS-CoV-2 variants of concerns were dominant, and vaccine effectiveness remained consistent (for scheme A plus B vaccine effectiveness against COVID-19-related hospital admission during beta wav …
During the course of the study, the beta (B.1.351) and then the delta (B.1.617.2) SARS-CoV-2 variants of concerns were dominant, and vaccine …