• Oct.-Dec. 1991: hematology laboratory in the Emergency dept. in the University teaching hospital. • April 1994: Joining the staff of department of Medical Microbiology in College of Medicine Al-Nahrain University • Sept. 2007- June 2008: I enrolled in commitment for completion of Master Degree in medical microbiology. I completed the first year courses of master degree successfully, at final assessment as “good". Then I enrolled in doing my thesis entitled “Immune response to salmonella and shigella and its relations to Reactive arthritis “. Thesis was accepted at score "Excellent". Final score “Good". • 2011-2012 I enrolled in commitment for completion of PhD Degree in medical microbiology. I completed my thesis entitled (Diagnosis of Cryptococcosis and Tuberculosis in CNS infections by molecular and serological methods) Thesis was accepted at score "Excellent".