Japanese Journal of Veterinary Research;Volume 68 Number 4

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The first genetic analysis of chicken anemia virus isolated in layer chicken flocks in the Philippines

Dong, Hieu Van;Abao, Lary Nel Bilbao;Tran, Giang Thi Huong;Takeda, Yohei;Mananggit, Milagros Reyes;Ogawa, Haruko;Imai, Kunitoshi

Permalink : http://hdl.handle.net/2115/79938
JaLCDOI : 10.14943/jjvr.68.4.249
KEYWORDS : Chicken anemia virus;Genetic analysis;Philippines

Abstract

Chicken anemia virus (CAV) exists worldwide; however, the infection of CAV in the Philippines has not been investigated. In this study, one out of three samples collected from diseased chickens farmed in Central Luzon, the Philippines, in 2017 was positive for the CAV genome based on real-time PCR testing. We conducted genetic characterization of the CAV strain. The phylogenetic analyses of the VP1 gene sequences and the protein-coding region of the CAV genome indicated that this CAV strain belongs to genotype III, which differs from vaccine strains 26P4, Cuxhaven 1, and Del-Ros that are already present in the country. The Filipino CAV strain is genetically related to the Polish, Chinese, and Taiwanese CAV strains.

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