About the Authors

Nathan Ford

Fordn@who.int

Affiliation Department of HIV/AIDS, World Health Organization, Geneva, Switzerland

Zara Shubber

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

Andrew Hill

Affiliation Pharmacology Research Laboratories, University of Liverpool, Liverpool, United Kingdom

Marco Vitoria

Affiliation Department of HIV/AIDS, World Health Organization, Geneva, Switzerland

Meg Doherty

Affiliation Department of HIV/AIDS, World Health Organization, Geneva, Switzerland

Edward J. Mills

Affiliation Faculty of Health Sciences, University of Ottawa, Ottawa, Canada

Andy Gray

Affiliation Division of Pharmacology, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: NF. Designed the review: NF. Undertook searches, extracted data and conducted authors for additional data: NF ZS AG. Performed the statistical analyses: NF. Contributed critical input: NF ZS AH MV MD EJM AG. Supported the interpretation of results, provided comments on subsequent drafts and approved the final version: NF ZS AH MV MD EJM AG.