1. Division of Medical Virology, Faculty of Medicine and Health Sciences, Stellenbosch University , Cape Town , South Africa
2. Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital , Cape Town , South Africa
3. KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal , Durban , South Africa
4. Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University , Stellenbosch , South Africa
5. Discipline of Virology, School of Laboratory Medicine and Medical Sciences and National Health Laboratory Service (NHLS), University of KwaZulu–Natal , Durban , South Africa
6. National Health Laboratory Service, Tygerberg Business Unit , Cape Town , South Africa
7. Department of Global Health, University of Washington , Seattle, Washington , USA