About the Authors

John Hargrove

jhargrove@sun.ac.za

Affiliation Department of Science and Technology, National Research Foundation, Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA), University of Stellenbosch, Stellenbosch, South Africa

Cari van Schalkwyk

Affiliation Department of Science and Technology, National Research Foundation, Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA), University of Stellenbosch, Stellenbosch, South Africa

Hayden Eastwood

Affiliation Department of Science and Technology, National Research Foundation, Centre of Excellence in Epidemiological Modelling and Analysis (SACEMA), University of Stellenbosch, Stellenbosch, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: JH CvS HE. Wrote the paper: JH CvS HE.