Genetic characterization of chicken anemia viruses newly isolated from diseased chicks in Japan in 2020

In this study, a total of nine chicken samples obtained from two broiler flocks in Oita and Tottori prefectures in 2020 were examined for Chicken anemia virus (CAV) infection. The samples were collected from clinically suspected flocks and diseased chickens. The CAV genome was detected in all nine s...

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Detalles Bibliográficos
Autores principales: DONG, Hieu Van, TRAN, Giang Thi Huong, KUROKAWA, Aoi, YAMAMOTO, Yu, TAKEDA, Yohei, OGAWA, Haruko, IMAI, Kunitoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2021
Materias:
Virology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8810318/
https://www.ncbi.nlm.nih.gov/pubmed/34866075
http://dx.doi.org/10.1292/jvms.21-0470
Descripción
Sumario:In this study, a total of nine chicken samples obtained from two broiler flocks in Oita and Tottori prefectures in 2020 were examined for Chicken anemia virus (CAV) infection. The samples were collected from clinically suspected flocks and diseased chickens. The CAV genome was detected in all nine samples tested by real-time PCR. Phylogenetic analyses and sequence comparisons of the full-length VP1 gene sequences indicated that all the Japanese CAV strains obtained in this study formed a similar cluster of genotype III and shared high nucleotide (99.62–100%) identity. The current Japanese CAV strains were closely related to Chinese CAV strains but not related to vaccine strains. One positive selection site of VP1 was detected among the Japanese CAV strains.

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