Funding for this research was provided by:
National Institute of Mental Health (NIMH -1R21MH083308-01)
South African AIDS Vaccine Initiative
Canadian Africa Prevention Trials Network
National Research Foundation of South Africa
Received: 13 February 2017
Accepted: 7 January 2018
First Online: 6 February 2018
Ethics approval and consent to participate
: Written informed consent was received from all participants prior to participation. The research was approved by the University of the Witwatersrand, Johannesburg, South Africa and Duke University, Durham in the United States.
: Not applicable.
: The authors declare that they have no competing interests.
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