Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México.
Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México.
Exp Appl Acarol. 2023 Sep;91(1):99-110. doi: 10.1007/s10493-023-00830-2. Epub 2023 Aug 16.
Soft ticks from the Ornithodoros genus are vectors of relapsing fever (RF) spirochetes around the world. In Mexico, they were originally described in the 19th century. However, few recent surveillance studies have been conducted in Mexico, and regions where RF spirochetes circulate remain vague. Here, the presence of soft ticks in populated areas was assessed in two sites from the Mexican states of Aguascalientes and Zacatecas. Argasidae ticks were collected, identified by morphology and mitochondrial 16S rDNA gene sequencing, and tested for RF borreliae. The specimens in both sites were identified as Ornithodoros turicata but no RF spirochetes were detected. These findings emphasize the need to update the distribution of these ticks in multiple regions of Mexico and to determine the circulation of RF borreliosis in humans and domestic animals.
软蜱属的软蜱是世界各地回归热螺旋体的媒介。在墨西哥，它们最初是在 19 世纪被描述的。然而，最近在墨西哥进行的监测研究很少，RF 螺旋体流行的地区仍不清楚。在这里，评估了来自墨西哥阿瓜斯卡连特斯州和萨卡特卡斯州的两个地点的人口稠密地区软蜱的存在情况。收集了 Argasidae 蜱，通过形态学和线粒体 16S rDNA 基因测序进行鉴定，并检测 RF 螺旋体。两个地点的标本均被鉴定为 Ornithodoros turicata，但未检测到 RF 螺旋体。这些发现强调需要更新墨西哥多个地区这些蜱的分布情况，并确定人类和家畜中 RF 螺旋体病的流行情况。
