About the Authors

Jörg Schüpbach

To whom correspondence should be addressed. E-mail: jorg.schupbach@access.uzh.ch

Affiliation University of Zurich, Swiss National Center for Retroviruses, Zurich, Switzerland

Martin D Gebhardt

Affiliation Swiss Federal Office of Public Health, Berne, Switzerland

Zuzana Tomasik

Affiliation University of Zurich, Swiss National Center for Retroviruses, Zurich, Switzerland

Christoph Niederhauser

Affiliation Blood Transfusion Service, Swiss Red Cross Berne, Berne, Switzerland

Sabine Yerly

Affiliation Hopital Cantonal Universitaire, Laboratoire Central de Virologie, Geneva, Switzerland

Philippe Bürgisser

Affiliation Centre Hospitalier Universitaire Vaudois, Service d'Immunologie et d'Allergie, Lausanne, Switzerland

Lukas Matter

Affiliation Institut Dr. Viollier AG, Basel, Switzerland

Meri Gorgievski

Affiliation University of Berne, Institute of Infectious Diseases, Berne, Switzerland

Rolf Dubs

Affiliation University Hospital, Department of Medicine, Zurich, Switzerland

Detlev Schultze

Affiliation Institute for Clinical Microbiology and Immunology, St. Gallen, Switzerland

Ingrid Steffen

Affiliation University of Basel, Institute for Medical Microbiology, Basel, Switzerland

Corinne Andreutti

Affiliation Clinique de la Source, Lausanne, Switzerland

Gladys Martinetti

Affiliation Istituto Cantonale di Microbiologia, Bellinzona, Switzerland

Bruno Güntert

Affiliation Labor Dr. Güntert, Lucerne, Switzerland

Roger Staub

Affiliation Swiss Federal Office of Public Health, Berne, Switzerland

Synove Daneel

Affiliation Kantonsspital St. Gallen, Department of Medicine, St. Gallen, Switzerland

Pietro Vernazza

Affiliation Kantonsspital St. Gallen, Department of Medicine, St. Gallen, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

JS, RS, and PV designed the study. JS, MDG, DS, and PV analyzed the data. JS, ZT, CN, SY, PB, LM, MG, RD, DS, IS, CA, BM, and BG enrolled patients. JS, SY, PB, LM, MG, DS, and PV contributed to writing the paper. MDG, ZT, CN, SY, PB, LM, MG, RD, DS, IS, CA, GM, BG, SD, and PV collected data or performed experiments for this study. MDG contributed the clinical data (from surveillance) needed for the analysis. Patients included in the present study are based on patients enrolled in the CHAT study, which included all individuals with a newly diagnosed HIV infection for the duration of 1 year. SD and PV were responsible for the design, data collection, and summary of the CHAT study, of which some results are presented in the present study.