About the Authors

Michael Huber

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Marek Fischer

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Benjamin Misselwitz

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Amapola Manrique

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Herbert Kuster

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Barbara Niederöst

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Rainer Weber

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Viktor von Wyl

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Huldrych F Günthard

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Alexandra Trkola

To whom correspondence should be addressed. E-mail: alexandra.trkola@usz.ch

Affiliation Division of Infectious Diseases, University Hospital Zürich, Zürich, Switzerland

Competing Interests

The authors declare that no competing interests exist.

Author Contributions

MH, MF, HFG, and AT designed the study. MH, MF, VvW, and AT analyzed the data. RW and HFG enrolled patients. MH, MF, AM, HK, RW, VvW, HFG, and AT contributed to writing the paper. BM developed the assay for the determination of GP41 antibody titers, determined all the antibody titers (anti-gp41, anti-gp120, and anti-p24), and analyzed these data. AM provided an experimental contribution to assays. HK performed virus isolations and neutralization assays and determined plasma IgG titers. BN performed RNA extractions and real-time PCRs. RW contributed to the design of the clinical studies and collection of patients' data. HFG designed and conducted the clinical studies forming the base for this laboratory work and was significantly involved in the overall design of this investigation.