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来自巴西亚马逊的北方惰动物中的动物性Giardia duodenalis组合A

Lisiane Lappe Dos Reis^1,2, Lirna Salvioni Silva de Souza¹, Francisco Carlos de Oliveira Braga¹

¹Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas & Maria Deane, Laboratório de Diversidade Microbiana da Amazônia de Importância para a Saúde, Manaus, AM, Brasil.

Memorias do Instituto Oswaldo Cruz

|November 16, 2023

概括

感染许多动物和人类的寄生虫Giardia duodenalis在巴西的惰动物中被发现. 这一发现证实了惰动物是亚马逊的寄生虫动物病周期的一部分.

科学领域:

兽医寄生虫学兽医寄生虫学
分子流行病学分子流行病学
动物传染病研究研究

背景情况:

十二指甲虫 (Giardia duodenalis) 是一种广泛传播的寄生虫,在全球范围内影响人类和各种动物宿主.
存在Giardia duodenalis的八种组合 (A-H),动物性组合A和B经常在人类和动物中发现.
了解Giardia流行病学对于监测和控制至关重要,特别是在动物传染病环境中.

研究的目的:

为了识别来自巴西亚马逊的惰动物中的Giardia duodenalis组合.
调查惰动物在传染Giardia duodenalis中的潜在作用.

主要方法:

亚马逊州的惰动物的便样本使用寄生虫学方法进行了检查.
使用聚合酶链反应 (PCR) 向β-giardin (BG) 和多位序列类型 (MLST) 基因.
进行了Amplicon测序和遗传学分析,以确定Giardia组合.

主要成果:

在两个北方 (Bradypus tridactylus) 身上通过显微镜检测到Giardia.
分子分析证实,这两种感染都是由Giardia duodenalis组合A引起的.
遗传学分析表明,这些惰动物衍生的序列与来自人类和动物来源的组合A聚集在一起.

结论:

这项研究代表了第一个记录的Giardia duodenalis在惰动物中的证据.
这些发现表明,惰动物参与巴西亚马逊地区Giardia duodenalis的动物/动物人类传播周期.

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