ArticleOpen veterinary journal2023
First detection and genetic characterization of chicken infectious anemia virus in the Mekong Delta, Vietnam.
Article in Open veterinary journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Current Knowledge on the Diagnostic Methods, Epidemiological Characteristics and Antiviral Strategies of Chicken Anemia Virus.Veterinary sciences · 2025Review
- Epidemiological Characteristics and Genetic Diversity of Chicken Infectious Anemia Virus (CIAV) in Guangdong Province, China.Veterinary sciences · 2025Article
- Advances in Chicken Infectious Anemia Vaccines.Vaccines · 2025Review
- From surveillance to pathogenesis: characterization of genotype V of chicken infectious anemia virus.Frontiers in veterinary science · 2025Article
- Gyrovirus: current status and challenge.Frontiers in microbiology · 2024Review
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Chicken infectious anemia (CIA) caused by the CIA virus (CIAV) is considered one of the most important immunosuppressive diseases affecting chickens and recently poses a great economic burden to the poultry industry worldwide. Aim: This study aims to identify the presence of CIAV in the Mekong Delta (MD), Vietnam, and to determine genotypes of CIAVs that are currently circulating in this area. Methods: Organ samples (spleen, liver, and thymus) of 144 chickens suspected with CIA from 47 poultry farms were collected. A total of 47 pooled samples, each containing 2-4 chickens from each farm, were tested for the presence of CIAV. Results: Twenty out of 47 pooled organ samples (pool of 2-4 chickens per farm) were positive for CIAV using polymerase chain reaction targeting the viral VP1 gene. The VP1 amplicons of eight representative CIAVs were subjected to sequencing and genetic characterization. Phylogenetic analysis based on partial VP1 gene sequence revealed that the CIAVs detected in the MD grouped into different genotypes of II, IIIa, and IIIc together with CIAVs previously detected in the northern Vietnam and other Asian countries. The phylogenetic analysis also confirmed that detected CIAVs genetically differed from vaccine strains. In addition, deduced amino acids of the VP1 identified several critical amino acid substitutions in the VP1 protein that are likely associated with the virulence of CIAV. Conclusion: This is the first report to detect and determine the genetic characterization of the circulating CIAVs in the MD. Therefore, this study provides an important understanding of the evolution of CIAVs and highlights the importance of implementing prompt control measures against CIAVs in the MD and Vietnam.
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