About the Authors

Tulio de Oliveira

Affiliation Africa Centre for Health and Population Studies, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa

Deenan Pillay

Affiliations Department of Infection, University College London, London, United Kingdom, Centres for Infection, Health Protection Agency, Colindale, United Kingdom

Robert J. Gifford

rgifford@adarc.org

Current address: Aaron Diamond AIDS Research Centre, New York, New York, United States of America

Affiliation Zoology Department, University of Oxford, Oxford, United Kingdom

for the UK Collaborative Group on HIV Drug Resistance

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TdO RJG. Performed the experiments: TdO RJG. Analyzed the data: TdO RJG. Contributed reagents/materials/analysis tools: TdO DP RJG. Wrote the paper: TdO RJG.