Detection and isolation of QX-like infectious bronchitis virus in Japan

The Journal of Veterinary Medical Science

article

Sayaka TAKAHASHI¹  Kie MATSUNE¹  Masaaki ONO¹  Takayuki OOSUMI¹  Makoto NAKANISHI¹  Junichi SOMA¹ 

[1] Institute of Animal Health, JA Zen-noh ,(National Federation of Agricultural Co-operative Associations)

关键词: genotype;    infectious bronchitis virus;    Japan;    QX-like;   

DOI  :  10.1292/jvms.22-0325

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

The antigenic variant QX-like infectious bronchitis virus (IBV) is endemic in several countries. In Japan, the QX-like genotype is classified as the JP-III genotype based on the partial S1 gene and as the GI-19 genotype based on the complete S1 gene. This study showed that QX-like IBVs and JP-III IBVs can be identified based on the amino acid polymorphism of the S1 glycoprotein. Furthermore, genetic analysis of several IBV field strains detected in commercial broiler farms across the Kyushu area in 2020 revealed Japanese QX-like IBVs, which are highly homologous to the QX-like IBVs recently detected in China and South Korea. Herein, QX-like IBV field strains were isolated for evaluating commercial vaccine efficacy in our future studies.

【 授权许可】

Unknown