Synergistic pathogenesis of chicken infectious anemia virus and J subgroup of avian leukosis virus.
As important immunosuppressive viruses, chicken infectious anemia virus (CIAV) and subgroup J avian leukosis virus (ALV-J) have caused huge economic losses to the poultry industry globally. Recently, the co-infection of CIAV and ALV-J frequently occurred in the domestic chicken flocks in China. However, the synergistic pathogenesis of CIAV and ALV-J has not been fully investigated. Here, a co-infection study was performed to further understand the potential synergistic pathogenesis of CIAV and ALV-J. In vitro study showed that CIAV could promote the replication of ALV-J in HD11 cells, but ALV-J could not increase the replication of CIAV. Chicken infection study showed both CIAV and ALV-J with synergistic effects caused significant body weight loss to the infected chickens. Although ALV-J had no effect on CIAV viral shedding and tissue load, CIAV did significantly increase ALV-J viremia, viral shedding and tissue load in the co-infection group. Moreover, both CIAV and ALV-J could significantly inhibit the humoral immunity to H9N2 influenza virus and serotype 4 fowl adenovirus (FAdV-4). All these data demonstrate the synergistic pathogenesis for the co-infection of CIAV and ALV-J, and highlight the positive effect of CIAV on the pathogenesis of ALV-J.
['Zhang|Jun|J|', 'Ma|Li|L|', 'Li|Tuofan|T|', 'Li|Luyuan|L|', 'Kan|Qiuqi|Q|', 'Yao|Xiaohui|X|', 'Xie|Quan|Q|', 'Wan|Zhimin|Z|', 'Shao|Hongxia|H|', 'Qin|Aijian|A|', 'Ye|Jianqiang|J|']
D000818:Animals D001353:Avian Leukosis D001354:Avian Leukosis Virus D017727:Chicken anemia virus D002645:Chickens D053127:Influenza A Virus, H9N2 Subtype D011201:Poultry Diseases
synergistic pathogenesis chicken infectious anemia virus immunosuppression subgroup J avian leukosis virus co-infection