来自巴西南部的被囚禁子中的沙囊病原体
Gisele Vaz Aguirre Samoel1, Fagner D'ambroso Fernandes2,3, Helton Fernandes Dos Santos4
1Departamento de Medicina Veterinária, Laboratório de Doenças Parasitárias, Programa de Pós-Graduação em Medicina Veterinária, Universidade Federal de Santa Maria, Rio Grande do Sul, Santa Maria, Brasil.
概括
像Toxoplasma gondii这样的沙囊状病原体在巴西动物园中近一半的被囚禁子中被检测到. 一只子死于一种独特的T. gondii菌株,这凸显了动物园环境中疾病监测的必要性.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 野生动物疾病生态学 野生动物疾病生态学
- 分子诊断学 分子诊断
背景情况:
- 非人类灵长类动物 (NHPs) 是众所周知的各种Sarcocystidae家族病原体的宿主.
- 了解这些寄生虫在被囚禁的NHP中的流行程度和多样性对于野生动物和公共健康至关重要.
- 动物学机构需要对动物传染病进行强有力的监测.
研究的目的:
- 在巴西南部动物园的死去的子中检测和识别Sarcocystidae DNA.
- 研究检测到的病原体的遗传多样性,特别是Toxoplasma gondii.
- 评估 NHP 在 Sarcocystidae 传播周期中的作用.
主要方法:
- 使用嵌套PCR对22只被囚禁子的84个组织样本进行分析.
- 限制片段长度多态 (RFLP) 和用于病原体识别的特定原料.
- 多位PCR-RFLP和ToxoDB用于T. gondii分离物的基因型定型.
主要成果:
- 在22只动物中有10只 (45.45%) 中检测到囊状DNA.
- 流行率包括Sarcocystis sp. 在内. (27.27%),Toxoplasma gondii (18.18%) 和Hammondia hammondi (4.54%). 这两种毒素都被发现.
- 一个致命的扩散性毒素菌病例在卡普奇人中涉及一种非典型的T. gondii基因型;H. hammondiDNA被发现在一只大黄蜂中.
结论:
- 在这个巴西动物园,在被关押的NHP中,肉囊感染很普遍.
- 这些发现突出了非典型T. gondii基因型的潜力以及NHPs作为中间宿主的作用.
- 动物馆的持续监测对于管理寄生病和了解病原体多样性至关重要.
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