About the Authors

H. Irene Hall

ixh1@cdc.gov

Affiliation Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Jessica Halverson

Affiliation Public Health Agency of Canada/Agence de la santé publique du Canada, Ontario, Canada

David P. Wilson

Affiliation Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia

Barbara Suligoi

Affiliation Istituto Superiore di Sanità, Rome, Italy

Mercedes Diez

Affiliation Secretaría del Plan Nacional sobre el Sida/Centro Nacional de Epidemiología, Madrid, Spain

Stéphane Le Vu

Affiliation Institut de Veille Sanitaire, Saint –Maurice, France

Tian Tang

Affiliation ICF Marcro International, Atlanta, Georgia, United States of America

Ann McDonald

Affiliation Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia

Laura Camoni

Affiliation Istituto Superiore di Sanità, Rome, Italy

Caroline Semaille

Affiliation Institut de Veille Sanitaire, Saint –Maurice, France

Chris Archibald

Affiliation Public Health Agency of Canada/Agence de la santé publique du Canada, Ontario, Canada

Competing Interests

TT is an employee of ICF Marcro International, Atlanta, Georgia, United States of America, who is under contract to the United States Centers for Disease Control and Prevention to provide scientific data analysis services. TT is a statistical data analyst and she analyzed the United States surveillance data for this paper. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HIH DPW BS MD CS CA. Analyzed the data: JH MD SLV TT AM LC. Contributed reagents/materials/analysis tools: HIH JH DPW BS MD SLV TT AM LC CS CA. Wrote the manuscript: HIH JH DPW BS MD SLV. Oversight of country HIV surveillance: HIH JH DPW BS MD SLV AM CS CA. Interpreting the respective country specific data: HIH JH DPW BS MD SLV AM CS CA.