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尼奥里克凯特西亚 sp. 在这里. 在巴西的子 (Nasua nasua) 中

Lívia Perles¹, Wanessa Teixeira Gomes Barreto², Gabriel Carvalho de Macedo³

¹Laboratório de Bioagentes Transmitidos por Vetores, Departamento de Patologia, Reprodução e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias - FCAV, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Jaboticabal, SP, Brasil.

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria

|July 19, 2023

概括

这项研究报告了在巴西中首次分子检测到Neorickettsia细菌. 六个血液样本的检测结果呈阳性,表明Neorickettsia risticii存在于这些南美种类.

科学领域:

兽医微生物学兽医微生物学
动物传播疾病动物传播疾病
野生动物健康野生动物健康

背景情况:

该属Neorickettsia包括与三毛虫相关的细菌,导致动物和人类的疾病.
在巴西,先前在被囚禁的中检测到Neorickettsia抗原的结果仅限于免疫组织化学.
在南美洲的前类动物中对Neorickettsia的分子鉴定仍然未得到证实.

研究的目的:

调查来自巴西中西部的自由散布的子中Neorickettsia物种的发生和分子身份.
通过分子方法确定可在鱼的血液样本中检测到Neorickettsia.

主要方法:

在2018年3月至2019年1月期间,从巴西南部马托格罗索州坎波格兰德的97只羊群收集了血液样本.
针对Neorickettsia的16SrRNA基因的嵌套PCR (nPCR) 在提取的DNA上进行.
使用测序和遗传学分析来识别检测到的Neorickettsia物种.

主要成果:

在97个 (3.6%) 考提动物血液样本中,在6个中检测到神经菌DNA.
获得的序列显示>99%与Neorickettsia risticii相似.
遗传学分析证实了与N. risticii.密切相关的Neorickettsia的存在.

结论:

这项研究提供了Neorickettsia sp. 的第一个分子证据. 在巴西的coatis.
这些发现表明Neorickettsia risticii在塞拉多地区的鱼种群中循环.
需要进一步的研究,以了解Neorickettsia在巴西野生动物中的传播动态和潜在的健康影响.

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