与南澳大利亚绵羊中Toxoplasma gondii血清流行率增加相关的危险因素
Connor Bury1, Charles Caraguel1, Anne-Lise Chaber1
1University of Adelaide, School of Animal and Veterinary Sciences, Roseworthy Campus, Mudla Wirra Road, Roseworthy, South Australia 5371, Australia.
Veterinary parasitology
|November 5, 2024
概括
南澳大利亚绵羊中多克索普拉斯马淋巴菌 (T. gondii) 暴露广泛,影响39%的动物. 地表水源显著增加了T. gondii的风险,突出了针对性缓解策略的必要性,以保护牲畜.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 食品 动物健康 动物健康
- 流行病学 流行病学
背景情况:
- 毒淋巴菌 (T. gondii) 是一种重要的原生虫寄生虫,影响小反动物,可能导致生殖失败.
- 了解T. gondii在牲畜中的流行率和风险因素对于疾病管理和经济稳定至关重要.
研究的目的:
- 评估南澳大利亚绵羊群中T. gondii的血清流行情况.
- 为了确定与绵羊T. gondii暴露相关的农场风险因素.
主要方法:
- 一项涉及南澳大利亚1433只羊 (母羊和公羊) 的观察性,横截面研究.
- 血液采样和血清学查T. gondii特异性抗体.
- 风险分析问卷对参与的物业进行管理.
主要成果:
- 总的来说,T. gondii的血清流行率为39%,100%的属性至少有一个阳性群.
- 血清发病率随着年龄的增长而显著增加,从1岁绵羊的30.2%上升到6岁以上绵羊的69.7%.
- 饮用地表水源的动物暴露于T. gondii的可能性是饮用网管水的动物的十倍以上 (OR:10.68).
结论:
- 在南澳大利亚的绵羊中,T. gondii的流行程度很高,已证实在群体层面感染.
- 年龄和水源 (特别是地表水) 是T. gondii暴露的重要风险因素.
- 建议采取缓解策略,重点是减少水源的卵囊污染,并限制牲畜与水的相互作用.
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