塞内卡病毒 A 在美国的发病率 繁殖群:十年的监控数据
Mariana Kikuti1, Xiaomei Yue1, Claudio Marcello Melini1
1Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108, USA.
Animals : an open access journal from MDPI
|June 13, 2025
概括
美国猪群中塞内卡病毒A (SVA) 爆发不常见,在夏末/秋季达到顶峰,主要在中西部. 持续监测对于管理这种特有病原体至关重要.
科学领域:
- 兽医流行病学 兽医流行病学
- 动物健康监督 动物健康监督
- 猪病的动态 猪病的动态
背景情况:
- 塞内卡病毒A (SVA) 对美国猪业构成重大威胁,原因是它与口病 (FMD) 的临床相似性.
- 了解SVA流行病学对于动物健康,贸易和疾病控制战略至关重要.
研究的目的:
- 分析美国繁殖群中塞内卡病毒A爆发的发病率和地理分布.
- 为了确定SVA传输的时间模式和区域趋势.
主要方法:
- 通过整合来自兽医实验室和从业人员报告的诊断数据,利用加强监测.
- 分析了2015年1月至2024年12月的疫情数据,以评估发病率和分布.
主要成果:
- 在美国的繁殖群中,SVA的总累积发病率仍然很低 (每年<2.5%).
- 峰值SVA发病率发生在第三季度和第四季度,中西部报告频率更高.
- 在受影响地区再次爆发的中位数是402天.
结论:
- 研究结果表明,潜在的季节性和区域因素会影响美国猪群中SVA传播.
- 低发病率表明有效管理或传播有限,但持续监测至关重要.
- 强调需要持续的监测和准备,以减轻未来的SVA爆发.
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