“…Equine herpesvirus 2 (EHV-2) is a slowly growing, cell-associated gamma-herpesvirus. This virus is widespread throughout the equine population and has been isolated from horses of different countries like United Kingdom [ 1 ], Japan [ 2 ], Australia [ 3 ], New Zealand [ 4 ], Switzerland [ 5 ], Germany [ 6 , 7 ], United States [ 8 , 9 ], Canada [ 10 ], Hungary [ 11 ] and more recently, from Poland [ 12 ]. Although its role as a pathogen is controversial, some authors have reported its association with upper respiratory tract disease, inappetance, lymphadenopathy, immunosuppression, keratoconjunctivitis, general malaise and poor performance [ 8 , 13 , 7 , 16 ].…”