The first notifications of the unknown disease of cattle appeared in September-October 2015 in North Caucasus region of Russia (Republic of North Ossetia-Alania). The clinical signs included watery discharge from eyes, apathy, loss of appetite, salivation, lameness and nodular skin lesions. Capripoxvirus genome was detected by real-time PCR in the tissue samples of sick animals. The aetiological agent was isolated in the primary cell cultures of lamb testis and goat testis, as well as in the continuous MDBK cell culture. Further sequencing of the GPCR gene and phylogenetic analysis showed the close genetic relationship of isolated capripoxvirus with a group of lumpy skin disease virus. Koch's postulates were fulfilled by the experimental infection of four calves with a suspension of tissue samples from sick animals.
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