分子鉴定,风险因素评估和来自伊朗东南部的症状和无症状牛的传播病原体的基因分析
Atefeh Fathi1,2, Reza Nabavi3, Vahid Noaman4
1Department of Pathobiology, Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran.
Experimental & applied acarology
|March 8, 2024
概括
传播病原体 (TBPs) 在伊朗牛群中普遍存在,87.8%的受感染者,包括无症状的携带者. 分子诊断可以帮助在小农场管理这些感染.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 分子诊断学 分子诊断
- 流行病学 流行病学
背景情况:
- 传播的病原体 (TBPs) 对牛的健康和生产力构成重大全球威胁.
- 像伊朗东南部这样的地区的资源有限的小农场在管理TBP方面面临着独特的挑战.
研究的目的:
- 调查来自伊朗东南部的牛中关键TBPs的流行率和危险因素.
- 突出无症状载体的作用和TBP检测分子诊断的实用性.
主要方法:
- 采集了230头牛的血液和样 (150头无症状,80头有症状).
- 利用分子方法检测了Anaplasma spp.,Babesia bigemina,和Theileria annulata. 这些物种都被发现.
- 分析了风险因素,包括临床状况,年龄,性别,品种和感染.
主要成果:
- 检测到高TBP流行率 (87.8%),其中Anaplasma marginale (72.2%) 和Theileria annulata (68.3%) 是最常见的.
- 所有无症状的牛至少有一种TBP;混合感染频繁 (77.3%).
- 感染,年龄较大和杂交动物是TBP的重要危险因素.
结论:
- 无症状的牛是TBP在特有地区传播的关键储库.
- 分子诊断对于识别亚临床感染和实现有针对性的干预至关重要.
- 在小型农场管理TBPs需要综合方法,重点是诊断和控制.
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