1. Unity of Research of Vegetal Ecology; Faculty of Sciences; University of El-Manar II; Campus Academia 2092 Tunis Tunisia
2. Laboratory of Epidemiology and Veterinary Microbiology; Group of Bacteriology and Biotechnology; Pasteur Institute of Tunisia (IPT); University of Carthage; BP 74, 13 Place Pasteur, Belvédère 1002 Tunis Tunisia