1. Department of Virology, Istituto Zooprofilattico Sperimentale del Piedmont, Turin, Italy
2. Diagnostic Section of Salerno, National Reference Center on ‘Hygiene and Technologies of Buffalo Breeding and Production’, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Salerno, Italy
3. Veterinary Local Service – ASL TO5, Torino, Italy
4. Diagnostic Section of Portici, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, Italy