About the Authors

Peter D. Ghys

Affiliation Joint United Nations Programme on HIV/AIDS, Geneva, Switzerland

Brian G. Williams

Affiliation South Africa Centre for Epidemiological Modelling and Analysis, Stellenbosch, South Africa

Mead Over

Affiliation Center for Global Development, Washington, DC, United States of America

Timothy B. Hallett

Affiliation Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom

Peter Godfrey-Faussett

godfreyp@unaids.org

Affiliation Joint United Nations Programme on HIV/AIDS, Geneva, Switzerland

Competing Interests

The authors have declared that no competing interests exist.