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Genetic characterization of feline panleukopenia virus from dogs in Vietnam reveals a unique Thr101 mutation in VP2.
Hoang, Minh; Wu, Cheng-Nan; Lin, Chuen-Fu; Nguyen, Huong Thanh Thi; Le, Van Phan; Chiou, Ming-Tang; Lin, Chao-Nan.
Affiliation
  • Hoang M; Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan.
  • Wu CN; Department of Anatomy and Histology, College of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam.
  • Lin CF; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan.
  • Nguyen HTT; Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan.
  • Le VP; Department of Veterinary Medicine, College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan.
  • Chiou MT; Department of Anatomy and Histology, College of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam.
  • Lin CN; Department of Microbiology and Infectious Disease, College of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam.
PeerJ ; 8: e9752, 2020.
Article in En | MEDLINE | ID: mdl-33083102
BACKGROUND: Canine parvovirus type 2 (CPV-2) and feline parvovirus (FPV) are known as the main causes of several serious diseases and have a severe impact on puppies and kittens, respectively. FPV and new CPV-2 variants are all able to infect cats, causing diseases indistinguishable from feline panleukopenia. However, FPV only replicates efficiently in feline cells in vitro and replicates in dogs in the thymus and bone marrow without being shed in feces. In our previous study, the genotypes of six parvoviral isolates were unable to be identified using a SimpleProbe® real-time PCR assay. METHODS: In the present study, we characterized previously unidentified FPV-like viruses isolated from dogs in Vietnam. The six isolates were utilized to complete VP2 gene sequencing and to conduct phylogenetic analyses. RESULTS: Sequence analysis of the six parvoviral strains identified the species as being similar to FPV. Phylogenetic analysis demonstrated that the complete VP2 genes of the strains are similar to those of FPV. The FPV-like strains contain a Thr101 mutation in the VP2 protein, which is different from prototype FPV strains. DISCUSSION: Our data provide evidence for the existence of changes in the charge, protein contact potential and molecular surface of the core of the receptor-binding size with an Ile101 to Thr101 mutation. This is also the first study to provide reliable evidence that FPV may be a threat to the Vietnamese dog population.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: PeerJ Year: 2020 Document type: Article Affiliation country: Country of publication:

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: PeerJ Year: 2020 Document type: Article Affiliation country: Country of publication: