在猪中发现西藏甲状病毒病毒的基因组识别和致病性评估
Zhanhong Li1,2, Pei Zhu1,2, Zhenxing Zhang1,2
1Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, China.
Transboundary and emerging diseases
|November 26, 2025
概括
西藏orbivirus (TIBOV) 在小猪中引起长期病毒病,症状轻微. 脏是主要的目标器官,早期免疫反应受到抑制.
科学领域:
- 兽医病毒学 兽医病毒学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 西藏甲状病毒 (TIBOV) 是由关节动物传播的甲状病毒,在猪身上检测到抗体.
- 猪中TIBOV的分子遗传学和病原性在很大程度上是未知的.
研究的目的:
- 调查感染猪中的TIBOV遗传特征.
- 评估TIBOV在断奶小猪中的致病性.
主要方法:
- 猪组织的病毒元基因组测序以获得TIBOV细分.
- 临床观察,病毒病监测,器官病毒载荷评估和TIBOV感染后猪仔免疫细胞因子分析.
主要成果:
- TIBOV遗传序列显示出与已知的菌株具有很高的相同性.
- 观察到轻微的临床症状,包括出血节点,感染后长达21天的长时间病毒病.
- 脏被确定为主要目标器官,具有显著的病变和高的病毒载荷,在早期感染中伴随着抑制的免疫反应.
结论:
- 在小猪中,TIBOV会导致长期病毒病和轻度疾病.
- 脏是TIBOV复制的一个关键目标器官.
- 早期宿主免疫反应可能被TIBOV感染抑制.
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