Information on the Sisonke2 Boost vaccine study is available from
Enquiries on the programme can be directed to 0800 014 956


You can find further information on the links below:
Sisonke2 Booster communication – 3 Nov 2021

Press Release: South African Medical Research Council and National Department of Health announce Sisonke 2 or the Sisonke boost study for health workers

MAC Advisory on Booster Johnson & Johnson Vaccines for Healthcare workers (version1) (version2)

Circular: Provision of a Booster Dose of Janssen® (J&J) Vaccine to Sisonke Study Participants

Sisonke participants were sent an SMS indicating that they are eligible to receive the booster dose, and be provided with a link to the list of sites which will offer the vaccination. They were required to provide informed consent to participate in this next phase of the study. This phase ended on Friday 17 December 2021. 

The new vaccination voucher number will begin with the letters BD- (Booster Dose). The vouchers remain valid until 14 Jan