Systemic polymicrobic infection involving Shewanella putrefaciens group in koi. Issue 12 (26th September 2018) - Cocchi, Monia; De Zan, Gabrita; Di Giusto, Tiziana; Deotto, Silvia; Pretto, Tobia; Manfrin, Amedeo; Brunetta, Romina; Toffan, Anna