Department of Infectious Diseases Faculty of Medicine Army University of Medical Sciences Tehran Iran;
Golestan Hospital Army University of Medical Sciences Tehran Iran;
Department of Microbiology school of Medicine Shahid Beheshti University of Medical sciences Tehran Iran;
Department of Microbiology Faculty of Medicine Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran;
Student Research Committee Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran;
Hepatitis Research Center Lorestan University of Medical Sciences Khorramabad IR Iran;