Cika jumla mai zuwa:
mamaye Kuwait a 1990 Kazem Behbehani ya gudu daga Kuwait kuma ya shiga WHO. A WHO (1990<unk>2005), ya yi aiki a cikin binciken allurar rigakafi na shirin AIDS na Duniya, shi ne Manajan Shirin Binciken Cututtukan Tropical (TDR), Daraktan duka Sashin Kula da Cututtukan Tropical (1994<unk>1998) da, Ofishin Haɗin Gabas na Gabas ta Tsakiya (1998<unk>2003) a Geneva. Ya yi aiki a matsayin memba na Kwamitin Rokon WHO, Sakataren taron Tarayyar Gwamnatoci da yawa (misali Yarjejeniyar Taba sigari), da kuma wasu kwamitocin / ƙananan kwamitocin Hukumar Zartarwa da Majalisar Lafiya ta Duniya. Matsayinsa na ƙarshe shi ne Mataimakin Darakta Janar na Harkokin Waje da Hukumomin Gudanarwa (2003 - 5). A shekara ta 2005, ya zama wakilin WHO. A shekara ta 2006 ya zama dan takarar hukuma a zaben Darakta Janar na WHO, inda ya yi nasarar kaiwa jerin manyan 5.