Zazueta-Islas Héctor M, Salceda-Sánchez Beatriz, Huerta-Jiménez Herón, Miranda-Caballero Carlos I, Solis-Cortés Marlene, de la Cruz-Pacheco Yaretzi, Luquín-García Ana Cristina, Mondragon-Peña Laura V, Reyes-Hernández Jair, Bravo-Ramos José L, Sánchez-Otero María-Guadalupe, Huerta-Peña Javier C, Hernández-Herrera Rosa I, San Martin-Del Angel Pablo, Roque André Luiz Rodrigues, Rodríguez-Moreno Ángel, Sánchez-Cordero Víctor, Rodríguez Martínez Héctor Abelardo, Grostieta Estefania, Becker Ingeborg, Sánchez-Montes Sokani
Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos, Secretaría de Salud, Mexico City 01480, Mexico.
Pathogens. 2024 Dec 6;13(12):1072. doi: 10.3390/pathogens13121072.
The Trypanosomatidae family encompasses around 24 genera of unicellular protozoans, many of which are transmitted by various hematophagous arthropods, particularly members of the Orders Diptera and Hemiptera. Fleas and ticks-an understudied group of ectoparasites-have been shown to be hosts of a wide and crescent variety of trypanosomatid species. Further, fleas and ticks of companion animals have been particularly neglected in trypanosomatid surveillance despite the proximity to human populations and the anthropophagous habits of many of these arthropods, which can potentially act as vectors of zoonotic trypanosomatids. We aimed to identify the presence, characterize the species, and establish the prevalence of Kinetoplastids, including members of the Trypanosomatidae family, in ectoparasites collected from dogs and humans from Mexico. A total of 537 ectoparasite specimens belonging to six ectoparasite taxa (, , , , , and s.s.) were collected from 15 States of Mexico. An 800 bp fragment of the 18S-rDNA gene from kinetoplastids was amplified and sequenced. The presence of two agents ( and sp.) was detected in ticks and one () in the cat flea . This is the first record of genetic material of kinetoplastid species in ectoparasites from dogs and humans in Mexico.
锥虫科包含约24属单细胞原生动物，其中许多由各种吸血节肢动物传播，特别是双翅目和半翅目的成员。跳蚤和蜱虫——一类研究较少的体外寄生虫——已被证明是多种锥虫物种的宿主。此外，尽管伴侣动物身上的跳蚤和蜱虫与人类接近，且其中许多节肢动物有嗜人习性，可能成为人畜共患锥虫的传播媒介，但在锥虫监测中，它们一直被特别忽视。我们旨在确定从墨西哥的狗和人身上采集的体外寄生虫中动质体（包括锥虫科成员）的存在情况、鉴定其物种特征并确定其流行率。从墨西哥15个州共采集了537份属于6个体外寄生虫类群（蜱、猫栉首蚤指名亚种、犬栉首蚤、印鼠客蚤、缓慢细蚤和不等单蚤指名亚种）的体外寄生虫标本。扩增并测序了动质体18S - rDNA基因的一个800 bp片段。在蜱中检测到两种病原体（泰勒虫属和巴贝斯虫属某种），在猫栉首蚤中检测到一种（犬复孔绦虫）。这是墨西哥狗和人身上的体外寄生虫中动质体物种遗传物质的首次记录。
