In May 2001, the first case of SVC infection in koi carp (Cyprinus carpio koi) in Switzerland was diagnosed. The fish suffered from lethargy, skin ulcers, oedema, enteritis, pericarditis, nephrosis and a secondary bacterial infection. Inoculation of organ material on EPC cell lines resulted in a cytopathic effect (CPE). The virus was identified as SVC by indirect fluorescence antibody test (IFAT). This SVC infection was an isolated case in Switzerland: No other SVC infection in koi carp has been diagnosed since.