About the Authors

Winnie Bergstedt

Affiliation Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

Pernille N. Tingskov

Affiliation Department of Vaccine Development, Statens Serum Institut, Copenhagen, Denmark

Birgit Thierry-Carstensen

Affiliation Department of Vaccine Development, Statens Serum Institut, Copenhagen, Denmark

Søren T. Hoff

Affiliation Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark

Henrik Aggerbeck

Affiliation Department of Vaccine Development, Statens Serum Institut, Copenhagen, Denmark

Vibeke O. Thomsen

Affiliation International Reference Laboratory of Mycobacteriology, National Centre for Antimicrobials and Infection Control, Statens Serum Institut, Copenhagen, Denmark

Peter Andersen

Affiliation Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark

Aase B. Andersen

bengaard@rh.dk

Affiliation Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

Competing Interests

The study group: ABA was previously employed at SSI, but since 1998 has been employed at Rigshospitalet and receives no salary from SSI. ABA and PA are co-inventors of a patent related to ESAT-6 but all rights belong to SSI. WB has no conflicts of interest. The SSI that sponsored the study employs PT, BTC, HA, STH, PA and VOT. This does not alter the authors' adherence to the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ABA. Performed the experiments: WB ABA. Analyzed the data: PNT BTC STH HA ABA. Contributed reagents/materials/analysis tools: PNT BTC STH HA VOT PA. Wrote the paper: WB ABA.