![]() The CDV isolates showed 99 % sequence identity in the HA gene among each other and belonged to the Arctic-like lineage of CDV. Because dogs were put under strict quarantine until CDV shedding ceased, CDV did not spread to any other dogs. CDV shedding was detected for a period of up to four months. None of the dogs developed neurological disease. Three dogs were hospitalized, and six dogs received ambulatory therapy for up to two months until recovery. Vector-borne infections ( Babesia spp., Leishmania infantum, Dirofilaria immitis) were found in 4 dogs (31 %). CDV infection was diagnosed in 11 dogs (85 %) 10 dogs (91 %) tested PCR-positive in conjunctival swabs. ![]() Thirteen dogs showed clinical signs after arrival, i.e., diarrhoea (57 %), coughing (43 %) and nasal and/or ocular discharge (21 %) radiographic findings that were compatible with bronchopneumonia were present in four dogs. One dog was euthanised directly after import. The data on vaccination and medical history were recorded (14 dogs), and the samples were collected to investigate CDV and vector-borne infections (13 dogs) and canine parvovirus infection (12 dogs). ![]() In the present study, we describe a distemper outbreak in 15 rescue dogs that were imported from Hungary to Switzerland by an animal welfare organisation. In recent years, the import of dogs from Eastern Europe to Switzerland has steadily increased. In Switzerland, distemper in domestic dogs is rarely reported. Canine distemper virus (CDV) is a major pathogen of dogs and wild carnivores worldwide. ![]()
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