患有呼吸道疾病的山羊感染了肠道病毒E
Hong Shi1, Long Wang2, Yun Hu3
1Henan Provincial Engineering and Technology Center of Animal Disease Diagnosis and Integrated Control, Henan Provincial Engineering Laboratory of Insects Bio-Reactor, Nanyang Normal University, Nanyang, People's Republic of China. kcn1@163.com.
BMC veterinary research
|February 18, 2025
概括
在中国,肠道病毒E (EV-E) 已被检测到患有呼吸系统疾病的山羊中. 这项研究报告了在中国山羊中第一个EV-E基因型4感染的分子证据,强调了需要采取控制措施的必要性.
科学领域:
- 兽医病毒学 兽医病毒学
- 动物传染病 动物传染病
- 分子流行病学分子流行病学
背景情况:
- 肠道病毒E (EV-E),以前被称为牛肠道病毒,在牛中传播,影响健康和患病的动物.
- 羊群中EV-E的致病性和患病率在很大程度上仍然没有特征,之前没有关于中国羊群中自然EV-E感染的报道.
- 在中国河南省山羊群中出现的呼吸道疾病爆发,促使对潜在的致病原体进行调查.
研究的目的:
- 调查中国发生呼吸道疾病的山羊中肠道病毒E (EV-E) 的存在和特征.
- 为了确定涉及山羊自然感染的EVE-E的特定基因型.
- 在中国山羊种群中提供EV-E感染的分子证据.
主要方法:
- 从河南省12个农场的生病和健康山羊中采集生物样本 (肺部,鼻,血液).
- 利用血清学,隔离和分子检测技术,包括检测到的EVE菌株的全基因组测序.
- 基于VP1,P1和多蛋白基因序列的家族遗传学分析,以确定病毒基因型和识别潜在的重组事件.
主要成果:
- 分子检测揭示了患病山羊中显著的EV-E存在:83.3%的肺样本,51.5%的鼻和33.8%的血液样本呈阳性.
- 测序了四个完整的EV-E基因组,与其他EV基因型相比,核酸相似性在35.3%至82.0%之间,氨基酸相似性在38.4%至91.6%之间.
- 遗传学分析将四个与EV-E基因型4 (EV-E4) 亚型的分离菌株聚集在一起,没有证据表明重组.
结论:
- 这项研究首次分子证实了中国患有呼吸道疾病的山羊天然EV-E基因型4感染.
- 这些发现强调了山羊对EVE-E的易感性及其在该地区呼吸道疾病中的潜在作用.
- 建议加强预防策略和控制措施,以管理和减轻这种病毒感染在山羊群中的传播.
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