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  • Title: [Epidemiological investigation on natural infection of different canine breeds with Borna disease virus in Ili, China].
    Author: Zhan QL, Zhang YY, Xu MM, Hu YB, Wu XL, Yu JP, Chen X, Zhu D, Yang DY, Xie P.
    Journal: Zhonghua Liu Xing Bing Xue Za Zhi; 2009 Oct; 30(10):993-7. PubMed ID: 20193374.
    Abstract:
    OBJECTIVE: To investigate the epidemiological pattern of Borna disease virus (BDV) among different canine breeds in Ili, China, and to analyze its potential phylogeny. METHODS: BDV p24 RNA fragments were detected from peripheral blood mononuclear cells (PBMCs) of canine by modified nested RT-PCR (nRT-PCR). Possible false positives were excluded by determination of both BDV p40 RNA fragments and PMD19 plasmid standards. Analysis were performed on genetic sequence, homologous comparison, amino acid sequence and phylogeny after p24 positive products were validated. RESULTS: BDV p24 RNA fragments were found only in Kazakh Tobet (a shepherd dog) in 8 breeds of 150 cases and their overall positive rate was 11.0% (10/91). Compared with the strain of He/80 from horse and that of S6 from sheep in Germany, the homologous similarities of Kazakh Tobet was 99.2% and 95.7%, and that of amino acid as 100% and 89.3%, respectively. The kinship of Kazakh Tobet was close to He/80 and next to S6. CONCLUSION: There was potential natural BDV infection in Kazakh Tobet in Ili, and its endemic strain was concerned with He/80 infecting Ili horse and S6 of German Merino sheep introduced into the region from Germany.
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