Infectious Hematopoietic Necrosis (IHN) and Viral Haemorrhagic
Septicaemia (VHS) are two systemic infections of several species of salmonids; whose
reporting is mandatory in accordance with Directive 67/1991 EC. In order to obtain and
preserve the free status at farm level, the Italian legislation (D.L.vo 148/2008) adopted
a surveillance program involving all freshwater farms raising salmonids to be released
on watercourses. This study provides a description of the epidemiology of IHN and
VHS in the Piedmont Region, during the period 2000-2015. In fact in the last 16 years
the surveillance was extended to all fisheries. We firstly described the disease
distribution by year and by geographical area., then the potential role of several farm
charcteristics was tested using unvariate and multivariate analysis.
Keywords: VHS, IHN, Epidemiology, Piedmont Region, Salmonid fish.
