During the summer of 2002 a distemper-like disease was observed in the free-ranging badger population in Denmark. It was characterised by grand seizures, abnormal behaviour and death; the badgers all had severe chronic pneumonia and some had non-suppurative encephalomyelitis. in this study, eight of the affected badgers were examined by gross pathological, histological, immunohistological, bacteriological, parasitological and virological methods, and were diagnosed with distemper; canine distemper virus was identified.