Funding for this research was provided by:
Stiftelsen Läkare mot AIDS Forskningsfond (Fob2016-0008)
National Research Foundation (NRF) in South Africa (UID 70878)
Received: 15 February 2019
Accepted: 29 August 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: The Institutional Review Board of the University of the Witwatersrand Human Research Ethics Committee (Medical) approved the study. Written informed consent was collected from all patients enrolled. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Not applicable.
: EB and LSM are respectively Chief Scientific Officer and Research specialist at the company Bifodan A/S, Denmark which develop and commercialise probiotic products. The company has had no influence on study design and data interpretation of the article. The other authors declare no competing interest.