Secretary SAPEL SC Dec 1994-Dec 1996 - Action Program for the Elimination of Leprosy, WHO, Geneva
Responsible Officer - December 1996 - Country Support and Special Action projects for the Elimination of Leprosy Action Program for the Elimination of Leprosy, WHO, Geneva Team Leader : WHO’s Global Leprosy Programme.
Secretariat: WHO Expert Committee on Leprosy Secretariat: WHO Technical Advisory Group Member: New York Academy of Sciences Member: International Epidemiological Association Member: WHO Task Force on Anti-Infective Drug Resistance, Geneva, Switzerland. WHO Editorial Adviser: Bulletin of the World Health Organization. The International Journal of Public Health, Geneva, Switzerland.
Member Editorial Board: Leprosy Review, London, UK | 
