Paul-Henri Lambert, MD, is Senior Advisor and retired Professor within the Centre of Vaccinology in the Department of Pathology and Immunology at University of Geneva. He is the former director at the International Advanced Course of Vaccinology (2000-2018). In addition, he is also a member of the Governing Board of the Tuberculosis Vaccine Initiative (TBVI) and past-chairman of the Human Vaccine Committee of the International Association for Biologicals (IABS) and of the World Health Organization GACVS (Global Advisory Committee on Vaccine Safety). He was chief of Microbiology and Immunology and of Vaccine Research and Development at the World Health Organization and was deeply involved in the coordination of research aiming at the development of vaccines against diseases of major importance. Paul-Henri Lambert is author of over 476 publications, several books, member of several international Scientific Boards, foreign member of the Royal Academy of Medicine in Belgium and Fellow of the American Association for the Advancement of Science.