We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Isolation and genetic characterization of waterfowl parvovirus in ducks in Northern Vietnam.
- Authors
Nguyen Thi Huong; Dong Van Hieu; Nguyen Thi Bich; Tran Van Khanh; Nguyen Thanh Ba; Chu Thi Ngoc Xuan; Quach Thi Minh Hien; Truong Ha Thai; Chu Thi Thanh Huong
- Abstract
Background and Aim: Short beak and dwarfism syndrome (SBDS), a highly contagious disease, has been reported in duck farms in Vietnam since 2019. In this study, we evaluated the virulence and characterized the virus obtained from SBDS cases in North Vietnam. Materials and Methods: Polymerase chain reaction was used to detect waterfowl parvovirus in ducks, and the virus from positive samples was inoculated into 10-day-old duck-embryonated eggs to reproduce the disease in young ducklings to determine the virulence and subjected to phylogenetic analysis of non-structural (NS) and VP1 gene sequences. Results and Discussion: Goose parvovirus (GPV) was isolated from ducks associated with SDBS in Vietnam. The virus Han-GPV2001 is highly virulent when inoculated into 10-day-old duck embryos and 3-day-old ducklings. The mortality rate of duck embryos was 94.35% within 6 days of virus inoculation. Inoculating 3-day-old ducks with the virus stock with 104.03 EID50 through intramuscular and neck intravenous administration resulted in 80% and 66.67% of clinical signs of SDBS, respectively, were shown. Phylogenetic analysis based on the partial NS and VP1 gene sequences revealed that the viral isolate obtained in this study belonged to novel GPV (NGPV) and was closely related to previous Vietnamese and Chinese strains. Conclusion: A GPV strain, Han-GPV2001, has been successfully isolated and has virulence in duck-embryonated eggs as well as caused clinical signs of SBDS in ducks. Phylogenetic analyses of partial genes encoding NS and capsid proteins indicated that the obtained GPV isolate belongs to the NGPV group.
- Subjects
VIETNAM; REPRODUCTIVE isolation; DUCKS; DUCKLINGS; WATERFOWL; COMMUNICABLE diseases; POLYMERASE chain reaction; VIRUS virulence
- Publication
Veterinary World, 2024, Vol 17, Issue 5, p981
- ISSN
0972-8988
- Publication type
Article
- DOI
10.14202/vetworld.2024.981-987