About the Authors

Joyce M. Tsoka-Gwegweni

tsokagwegweni@ukzn.ac.za

Affiliation Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa

Uchenna Okafor

Affiliation Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMTG UO. Performed the experiments: UO. Analyzed the data: JMTG UO. Contributed reagents/materials/analysis tools: JMTG. Wrote the paper: JMTG UO. Data collection and laboratory processing: UO. Data interpretation and draft manuscript: JMTG UO. Finalise manuscript: JMTG.