Dr.Radosavljevic Vladan graduated from the Medical Faculty of the University of Belgrade, Serbia, in 1991. He specialized in Epidemiology in May 1995 and received his doctorate in Epidemiology in November 1999 from the same institution.From 2003 to 2010, he served as Head of the Department of Epidemiology and Deputy Director of the Military Institute for Preventive Medicine in Belgrade. From 2010 to 2020, he served as Head of Military Preventive Medicine at the Ministry of Defence of Serbia.In 2020, Dr. Radosavljevic joined the Institute of Epidemiology at the Military Medical Academy in Belgrade, where he currently works as an expert epidemiologist.He has also served as a professor for the Biological Weapons course at the Military Academy of the University of Defence in Belgrade and as a research associate in the Epidemiology course.Since 2015, Dr. Radosavljevic has served as a United Nations expert on biological weapons under the mechanism of the United Nations Secretary-General.