Determination and phylogenetic analysis of canine distemper virus in dogs with nervous symptoms in Turkey

Özkul, A. and Arda Sancak, A. and Güngör, E. and Burgu, I. (2004) Determination and phylogenetic analysis of canine distemper virus in dogs with nervous symptoms in Turkey. Acta Veterinaria Hungarica, 52 (1). pp. 125-132. ISSN 0236-6290

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Abstract

In the present study, canine distemper virus (CDV) was investigated in 20 dogs having nervous signs arousing the clinical suspicion of canine distemper (CD). A total of 13 animals (65%) were stray dogs and had no accurate record about the vaccination history. Clinical examinations revealed that the majority (85%) of the animals showed systemic form characterised by predominantly nervous symptoms accompanied by mild respiratory system signs whilst the remaining cases (15%) recorded mainly respiratory distress. CDV RNA was detected by reverse transcription-polymerase chain reaction (RT-PCR) only in 45% of the suspected cases. Phylogenetic analysis of partial nucleotide sequence of the P gene coding region revealed that the virus is closely related to European strains. Immune responses in 13 cases (65%), which were detected by dot-ELISA, indicated inefficient levels for neutralising functions against CDV. It was postulated that this response could have been mediated by either previous vaccination or mild infection with field strains.

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