Received: 15 August 2020
Accepted: 3 February 2021
First Online: 27 February 2021
Ethics approval and consent to participate
: This study has received approval from the University of KwaZulu-Natal Biomedical Research Ethics Committee (BE019/19), National Health Laboratory Service, Inkosi Albert Luthuli Central Hospital, and the KwaZulu-Natal Department of Health (South Africa). The National Health Laboratory Service granted permission and provided access to the raw data utilised in this study. The data was anonymised prior to use.
: Not applicable.
: The authors declare that they have no competing interests.