1. Division of Immunology and Allergy; Centre Hospitalier Universitaire Vaudois; University of Lausanne; Lausanne; Switzerland
2. Division of Pneumology; Centre Hospitalier Universitaire Vaudois; University of Lausanne; Lausanne; Switzerland
3. South African Tuberculosis Vaccine Initiative; University of Cape Town; Cape Town; South Africa
4. Division of Occupational Medicine; Centre Hospitalier Universitaire Vaudois; University of Lausanne; Lausanne; Switzerland
5. National Institute for Infectious Diseases; Rome; Italy