**Acknowledgements**

The authors would like to thank the Piemonte and Liguria Regional working group for the surveillance of WNV, all Professionals from Istituto Zooprofilattico del Piemonte, Liguria e Valle d'Aosta and from Local and Regional Public Health Authorities, which actively collaborate to realize integrated surveillance against MBDs. The authors would also like to acknowledge all the personnel who performed the field and the laboratory work.
