Prof. Paul-Henri Lambert, MD, is now associated with the Centre of Vaccinology in the Department of Pathology and Immunology at University of Geneva. He is directing the International Advanced Course of Vaccinology (ADVAC) organized under the auspices of the Fondation Mérieux and University of Geneva. He is a member of the Governing Board of the Tuberculosis Vaccine Initiative (TBVI), past-chairman of the Human Vaccine Committee of the International Association for Biologicals (IABS) and of the Global Advisory Committee on Vaccine Safety of the World Health Organization (WHO). In 1987, he was appointed as chief of Microbiology and Immunology at the World Health Organization and in 1994, chief of the Vaccine Research and Development, WHO Global Program for Vaccines and Immunization. During this time he was deeply involved in co-ordination of research aiming at the development of vaccines against diseases of major importance in developing countries.