کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8505754 | 1555313 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pathogenicity of a newly emerged recombined porcine reproductive and respiratory syndrome virus strain (subgenotype III) in China
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
Porcine reproductive and respiratory syndrome virus (PRRSV) is a severe pathogen that causes enormous economic losses to the swine industry worldwide. Since its first report in the 1980s, PRRSV has undergone extensive variation. In the previous study, we demonstrated that the GDsg strain was a new recombined virus between the low pathogenic field strain QYYZ and the vaccine strain JXA1-P80, belonging to the newly emerging type 2 PRRSV subgenotype III. In this study, the pathogenicity of a new recombined strain GDsg for pigs was analyzed. The results of in vivo experiments indicated that GDsg could cause persistently high fever, severe interstitial pneumonia, and high viremia and antibody levels in inoculated piglets. In particular, the brains of inoculated pigs exhibited serious hemorrhage and microscopic lesions. These results suggested that compared with the low pathogenic field strain QYYZ and the vaccine strain JXA1-P80, the new recombined GDsg strain had higher virulence in pigs. This study will help to characterize the relationship between recombination and evolution of PRRSV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Veterinary Microbiology - Volume 210, October 2017, Pages 162-166
Journal: Veterinary Microbiology - Volume 210, October 2017, Pages 162-166
نویسندگان
Jianguo Dong, Yanwu Wang, Linyang Yu, Pengfei Zhang, Xiangcong Liu, Leyi Zhang, Yanling Liu, Pengshuai Liang, Lei Wang, Changxu Song,