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在无PRRS地区进行早期检测监测的量化

Mira Willkan¹, Lorraine Chapot², Angus Cameron²

¹Livestock Innovation, SEGES Innovation P/S, Agro Food Park 15, Aarhus N 8200, Denmark.

Preventive veterinary medicine

|February 21, 2025

概括

丹麦丹麦丹麦丹麦丹麦

科学领域:

兽医流行病学兽医流行病学
疾病监测疾病监测
动物健康经济学动物健康经济学

背景情况:

丹麦于2022年5月启动了一项全国性猪生殖和呼吸系统综合征 (PRRS) 控制计划.
几个地区正在接近无PRRS状态,需要有效的监测,以便早期检测新的入侵.
该研究解决了在无PRRS地区优化监测策略的关键需求.

研究的目的:

量化丹麦现有和替代的PRRS监控系统的早期检测灵敏度.
评估不同采样频率和早期检测PRRS的方法的有效性.
提供基于数据的建议,以加强PRRS无区域的PRRS监测.

主要方法:

评估当前的PRRS监测系统,包括可报告和活跃的血清组件 (每月/每年采样).
模拟了替代策略的敏感性:增加所有农场的采样频率,综合征监测和基于风险的有针对性的采样 (季度/月).
量化了区域一级每个监控场景的早期检测概率.

主要成果:

目前的PRRS监控系统显示,在没有PRRS的地区,早期检测入侵的可能性很低 (21.5%).
在所有农场,将采样频率提高到每月一次,大大提高了检测概率,达到87.7%.
有针对性的基于风险的抽样显示出潜力,每月抽样达到62.6%的检测概率.

结论:

丹麦目前的PRRS监控系统在早期发现新入侵时存在局限性.
提高PRRS的早期检测需要增加所有农场的采样频率或实施基于风险的有针对性的采样.
优化监测策略对于保持无PRRS状态和防止再次出现至关重要.

关键词:

疾病监测疾病监测对于PRRS来说,这是一个很大的问题.这些猪是猪.猪猪的猪猪的猪猪的猪猪的猪系统灵敏度系统灵敏度

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