Reza Shahriarirad1, Bahador Sarkari2,3. 1. MD, Thoracic and Vascular Surgery Research Center, 48435Shiraz University of Medical Sciences, Shiraz, Iran. 2. Professor of Immunology, Basic Sciences in Infectious Diseases Research Center, 48435Shiraz University of Medical Sciences, Shiraz, Iran. 3. Professor of Immunology, Department of Parasitology and Mycology, School of Medicine, 48435Shiraz University of Medical Sciences, Shiraz, Iran.