1. Unit of Virology; Department of Animal Health; Istituto Zooprofilattico Sperimentale del Mezzogiorno; Portici Naples Italy
2. Wildlife Research Unit; Department of Agriculture; University of Naples Federico II; Portici Naples Italy
3. Department of Veterinary Medicine; University of Bari; Valenzano Bari Italy
4. Forestry and Conservation; Cassino Frosinone Italy