Prevalence of emerging porcine parvoviruses and their co-infections with porcine circovirus type 2 in China.
A total of 450 samples from domestic pigs in China were tested for porcine parvoviruses (PPVs) and co-infections with porcine circovirus type 2 (PCV2), and their complete capsid genes were sequenced. The prevalence of PPV1, PPV2, PPV3, PPV4, and PCV2 was 5.56 %, 39.56 %, 45.11 %, 21.56 %, and 47.33 %, respectively, and co-infection with PCV2 occurred in 4 % (PPV1), 22.44 % (PPV2), 24 % (PPV3), and 12 % (PPV4) of the samples. Phylogenetic analysis revealed two main lineages for each virus, and residues that differentiated these viruses were identified. The co-infections of emerging PPVs and PCV2 were prevalent, indicating their cooperative roles in porcine circovirus-associated diseases.
Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Harbin, 150001, China.
Jianhui
J
Sun
Liping
L
Huang
Yanwu
Y
Wei
Yiping
Y
Wang
Dongjie
D
Chen
Wenjuan
W
Du
Hongli
H
Wu
Changming
C
Liu
D000818:Animals; D036022:Capsid Proteins / Q000235:genetics; D002681:China / Q000453:epidemiology; D018173:Circoviridae Infections / Q000453:epidemiology* / Q000821:virology; D017925:Circovirus / Q000302:isolation & purification*; D016000:Cluster Analysis; D060085:Coinfection / Q000453:epidemiology* / Q000821:virology; D004279:DNA, Viral / Q000737:chemistry / Q000235:genetics; D008969:Molecular Sequence Data; D010322:Parvoviridae Infections / Q000453:epidemiology* / Q000821:virology; D028323:Parvovirus, Porcine / Q000302:isolation & purification*; D010802:Phylogeny; D015995:Prevalence; D017422:Sequence Analysis, DNA; D017385:Sequence Homology; D034421:Sus scrofa / Q000821:virology*
D036022:Capsid Proteins; D004279:DNA, Viral