Theileria cervi in Amblyomma neumanni (Acari: Ixodida, Ixodidae) collected on horses from North-western Argentina.

Q3 Immunology and Microbiology

Journal of Parasitic Diseases Pub Date : 2025-09-01 Epub Date: 2025-01-31 DOI:10.1007/s12639-025-01784-5

Martina Montini, Jorgelina Torrents, Santiago Nava, Patrick S Sebastian

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Abstract

Amblyomma neumanni ticks collected on horses from the North-West of Argentina were analyzed for the presence of the Piroplasm agents Babesia and Theileria. A total of 97 adult ticks from four different provinces (Jujuy, Santiago del Estero, Salta, Tucumán) were included in this study. Genomic DNA was isolated, and conventional PCR assays were applied for the detection of the 18S rDNA gene of Babesia and Theileria species. One sample corresponding to a male of A. neumanni collected in Tapia, Tucumán Province, resulted positive. Phylogenetic analyses carried out with the obtained 18S rDNA partial gene sequences resulted in the identification of Theileria cervi. Although the detection of T. cervi in A. neumanni collected on a horse does not represent direct evidence of its vector competence regarding this Theileria species, it can be seen as an indication of the circulation of T. cervi in the epidemiological circuit formed by the interaction A. neumanni-horses.

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从阿根廷西北部采集的马身上采集的neumanamblyma（蜱螨亚纲：伊蚊科，伊蚊科）的宫颈孢子虫。

对从阿根廷西北部采集的马身上采集的诺曼两眼虫蜱进行了分析，以确定是否存在巴贝斯虫和伊氏菌。研究对象为来自胡胡伊省、圣地亚哥德尔埃斯特罗省、萨尔塔省、Tucumán 4个省的97只成蜱。分离巴贝斯虫及其勒氏菌的基因组DNA，采用常规PCR方法检测其18S rDNA基因。在Tucumán省塔皮亚采集的一份男性诺伊曼依蚊样本呈阳性。利用所获得的18S rDNA部分基因序列进行系统发育分析，鉴定出该菌属。虽然在马身上采集到的纳曼依蚊中检测到子宫颈绦虫并不代表其对这一种伊氏杆菌具有媒介能力的直接证据，但它可以被视为在纳曼依蚊与马相互作用形成的流行病学循环中存在子宫颈依蚊的迹象。

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来源期刊

Journal of Parasitic Diseases Immunology and Microbiology-Parasitology

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： The primary constituency of the Journal of Parasitic Diseases is parasitology. It publishes original research papers (pure, applied and clinical), which contribute significantly to any area of parasitology. Research papers on various aspects of cellular and molecular parasitology are welcome.