Funding for this research was provided by:
Walter Sisulu University Publication incentive funds
Received: 20 October 2021
Accepted: 17 February 2022
First Online: 28 February 2022
: All methods were performed in accordance with the study protocol of relevant institutional, national, and international guidelines, regulations and legislation required for human studies. Ethical approval was obtained from the Health Sciences Ethics Committee of Walter Sisulu University (Ref No: 112/2018). After careful explanation of the study objectives and protocol, written informed consent was obtained from the parents and/or legal guardians of children before recruitment into the study. Participation was voluntary and participants were free to withdraw from the study at any point.
: Not applicable.
: The authors declare that they have no competing interests.