Centre for Tropical Diseases, Sacro Cuore-Don Calabria Hospital, 37024, Negrar, Verona, Italy. fverra66@gmail.com. Centre for Tropical Diseases, Sacro Cuore-Don Calabria Hospital, 37024, Negrar, Verona, Italy. Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, Turin, Italy. Centre for Tropical Diseases, Sacro Cuore-Don Calabria Hospital, 37024, Negrar, Verona, Italy. Centre for Tropical Diseases, Sacro Cuore-Don Calabria Hospital, 37024, Negrar, Verona, Italy. Centre for Tropical Diseases, Sacro Cuore-Don Calabria Hospital, 37024, Negrar, Verona, Italy.