1. Laboratory Microorganismes and Active Biomolecules, Sciences Faculty of Tunis University of Tunis El Manar Tunis Tunisia
2. Department of Pathology Salah Azaiz Institute Tunis Tunisia
3. Department of Zoology, College of Science King Saud University Riyadh Saudi Arabia
4. Department of Experimental and Diagnostic Medicine, Section Microbiology University of Ferrara Ferrara Italy