在哈萨克斯坦,牛白血病病毒的血清流行和分子分析
Saltanat Mamanova1, Ainur Nurpeisova1, Elvira Bashenova1
1Kazakh Scientific Research Veterinary Institute, LLP, 223 Rayymbek Avenue, Almaty 050016, Kazakhstan.
Viruses
|July 30, 2025
概括
牛白血病病毒 (BLV) 在哈萨克斯坦流行,在10年调查中发现的血清流行率为5.87%. 基因型G-7菌株正在流传,强调需要使用血清学和分子方法进行综合监测,以有效控制.
科学领域:
- 兽医病毒学 兽医病毒学
- 流行病学 流行病学
- 动物卫生 动物健康
背景情况:
- 牛白血病病毒 (BLV) 对全球牛畜产业构成重大经济挑战.
- 持续的BLV感染需要强有力的监测和控制策略.
- 了解BLV流行率和遗传多样性对于管理其影响至关重要.
研究的目的:
- 从2014年到2024年,在哈萨克斯坦进行全国范围的BLV流行率和遗传特征调查.
- 为了比较不同血清学和分子方法的诊断灵敏度,用于BLV检测.
- 为了验证BLV监视的新开发的国内诊断套件.
主要方法:
- 在全国范围内对433537个牛血清样本进行血清查,使用阿加凝免疫扩散 (AGID).
- 使用AGID,ELISA,实时PCR和嵌套PCR对3736个血清和536个全血样本进行了有针对性的分析.
- 分子测序以表征BLV基因型.
- 国内开发的AGID诊断套件与商业测试的验证.
主要成果:
- 哈萨克斯坦的总体BLV血清流行率为5.87%,区域差异较大.
- 对于血清检测,ELISA显示了较高的灵敏度 (10.4%),相比于AGID (8.2%).
- 实时PCR检测到BLVDNA在4.7%的样本中,表明病毒活跃循环.
- 国内开发的AGID套件与商业测试完全一致.
- 分子分析确定了BLV基因型G-7,与区域菌株一致.
结论:
- 在哈萨克斯坦,BLV是流行病,需要持续监测.
- 综合的血清和分子监测方法对于有效的BLV控制至关重要.
- 经过验证的国内诊断套件可以支持国家BLV监测计划.
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