Comparative epidemiology of porcine circovirus type 3 in pigs with different clinical presentations

Porcine circovirus type 3 (PCV3), as an emerging circovirus species, was reported to be widely circulating in the United States, China, South Korea and Poland. Previous studies revealed that PCV3 was mainly concentrated in sick animals with respiratory disease, skin disease, reproductive disorders a...

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Published in:Virology journal 2017-11, Vol.14 (1), p.222-222, Article 222
Main Authors: Zhai, Shao-Lun, Zhou, Xia, Zhang, He, Hause, Ben M, Lin, Tao, Liu, Runxia, Chen, Qin-Ling, Wei, Wen-Kang, Lv, Dian-Hong, Wen, Xiao-Hui, Li, Feng, Wang, Dan
Format: Article
Language:English
Subjects:
Asymptomatic
Cloning
Comparative epidemiology
Deoxyribonucleic acid
Diarrhea
DNA
Epidemiology
Genetic analysis
Genetic diversity
Genetic testing
Genomes
Hogs
Infections
Lung diseases
Lymphatic system
Porcine circovirus type 3
Respiratory disease
Respiratory diseases
Short Report
Skin diseases
Surveys
Swine
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Summary:Porcine circovirus type 3 (PCV3), as an emerging circovirus species, was reported to be widely circulating in the United States, China, South Korea and Poland. Previous studies revealed that PCV3 was mainly concentrated in sick animals with respiratory disease, skin disease, reproductive disorders and so on. However, the circulating status of PCV3 in pigs with other clinical presentations (especilly asymptomatic or diarrhea) was not well established. In this study, to conduct a comparative epidemiological survey of PCV3, 80 weaned pig serum samples with severe respiratory disease (SRD), 175 weaned pig serum samples with mild respiratory disease (MRD), 216 asymptomatic weaned pig serum samples, 35 diarrheal weaned pig samples and 35 non-diarrheal weaned pig samples were collected from eight provinces of China. Via qPCR testing, PCV3 was circulating in all sampling provinces, with total positive rates varying from 1.04% to 100%. Interestingly, the PCV3-positive rate was significantly higher in weaned pigs with SRD (63.75%, 51/80) than in those weaned pigs with MRD (13.14%, 23/175) and asymptomatic pigs (1.85%, 4/216) (P 
ISSN:1743-422X
1743-422X
DOI:10.1186/s12985-017-0892-4