Surveillance of tick-borne pathogens present in ticks (Acari: Ixodidae) removed from companion animals in Louisiana, USA.

Journal of medical entomology Pub Date : 2024-10-09 DOI:10.1093/jme/tjae122

Sabrina M Valdes, Sean Simonson, Christine Scott-Waldron, Gary Balsamo, Britton J Grasperge, Lane D Foil, Udeni Balasuriya, Kevin R Macaluso

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Abstract

Current knowledge of tick distribution and tick-borne pathogen presence across Louisiana is limited. Collaborating with veterinarians across the state, ticks removed from companion animals were recovered and assessed for the presence of zoonotic pathogens. A large number of ticks (n = 959) were removed from companion animals and subsequently screened using qPCR for Anaplasma phagocytophilum, Babesia microti, Borrelia burgdorferi, Bartonella henselae, Ehrlichia chaffeensis, and spotted fever group Rickettsia. Five different tick species, Ixodes scapularis (54.5%), Amblyomma americanum (18.4%), Amblyomma maculatum (12.5%), Dermacentor variabilis (11.2%), and Rhipicephalus sanguineus (0.3%) from different regions of Louisiana were collected from October 2018 to July 2019. There were 15 PCR-positive ticks for Rickettsia parkeri (1.6% prevalence), and four ticks were positive for Ehrlichia chaffeensis (0.4% prevalence). This survey identifies ticks and tick-borne pathogens associated with companion animals and areas for future active surveillance.

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对美国路易斯安那州从伴侣动物身上清除的蜱虫（Acari: Ixodidae）中存在的蜱传病原体进行监测。

目前，人们对路易斯安那州的蜱虫分布和蜱虫病原体存在情况的了解十分有限。我们与全州的兽医合作，对从伴侣动物身上取下的蜱虫进行了回收和评估，以确定是否存在人畜共患病病原体。从伴侣动物身上取下了大量蜱虫（n = 959），随后使用 qPCR 对噬细胞嗜血阿纳疟原虫、细小巴贝西亚原虫、布氏波氏杆菌、鸡形巴顿氏菌、沙菲氏埃利希菌和斑疹热立克次体进行了筛查。2018 年 10 月至 2019 年 7 月期间，从路易斯安那州不同地区采集了五种不同的蜱虫，分别是 Ixodes scapularis（54.5%）、Amblyomma americanum（18.4%）、Amblyomma maculatum（12.5%）、Dermacentor variabilis（11.2%）和 Rhipicephalus sanguineus（0.3%）。有 15 只蜱对 Parkeri 立克次体（流行率为 1.6%）呈 PCR 阳性，有 4 只蜱对 Ehrlichia chaffeensis（流行率为 0.4%）呈阳性。这项调查确定了与伴侣动物有关的蜱虫和蜱虫传播的病原体，以及今后需要积极监测的领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of medical entomology

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