Funding for this research was provided by:
Regione Campania (PECC 2016-2019)
Received: 18 April 2019
Accepted: 27 June 2019
First Online: 5 July 2019
Ethics approval and consent to participate
: The Istituto Zooprofilattico Sperimentale del Mezzogiorno is accredited by the Italian Ministry of Health to perform systematic surveys on infectious diseases of animals. Procedures for this study were performed in accordance with the guide for the care and use of animals by the Italian Ministry of Health.
: Not applicable.
: The authors declare that they have no competing interests.