Cárdenas-Amaya Carolina, Romero-Salas Dora, Rafael Marta, Chaparro-Gutiérrez Jenny J, López-Osorio Sara, Aguilar-Domínguez Mariel, Alonso-Díaz Miguel Á, Pérez de León Adalberto Á, de la Fuente José
Laboratorio de Parasitología, Rancho "Torreón del Molino", Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Carretera Veracruz-Xalapa Km. 14.5, Col. Valente Díaz, Veracruz 91697, CP, Mexico.
Grupo de Investigación en Sanidad y Biotecnología (SaBio), Instituto de Investigación en Recursos Cinegéticos (IREC), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Castilla-La Mancha (UCLM)-Junta de Comunidades de Castilla-La Mancha (JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
Pathogens. 2025 Feb 21;14(3):214. doi: 10.3390/pathogens14030214.
Bovine anaplasmosis is a tick-borne disease caused by , although mechanical transmission by biting flies also occurs. Infection with can reach 26% mortality and morbidity is associated with reduced beef and milk production, causing economic losses for livestock producers. Between March 2022 and July 2023, 1920 ticks were collected from 52 cattle production units in major cattle-producing states in Mexico, including Chiapas, Jalisco, Michoacán, Tabasco, and Veracruz. Of all the ticks collected, 35.57% were morphologically identified as . Samples of from each state, totaling 271, were tested for via polymerase chain reaction (PCR). was detected molecularly in 15.3% of samples. from Chiapas had the highest prevalence of (24.0%), followed by Tabasco and Veracruz (20.0% each), Jalisco (15.2%), and Michoacán (6.6%). Phylogenetic analysis supported the morphological identification of and confirmed the genetic identity of . This research is the first report on the molecular detection of in ticks in Mexico. Results suggest that this 3-host tick species might be a potential vector. is Mexico's second most economically significant tick feeding on cattle after . This information about prevalence in expands our understanding of bovine anaplasmosis epidemiology in Mexico. Further research is needed to assess the role of as a vector of .
牛无形体病是一种由蜱传播的疾病，不过也会通过吸血蝇进行机械传播。感染该病的死亡率可达26%，发病会导致牛肉和牛奶产量下降，给牲畜养殖户造成经济损失。2022年3月至2023年7月期间，从墨西哥主要养牛州的52个养牛场收集了1920只蜱，这些州包括恰帕斯州、哈利斯科州、米却肯州、塔巴斯科州和韦拉克鲁斯州。在所有收集到的蜱中，35.57%在形态上被鉴定为[具体蜱种名称未给出]。从每个州采集的共计271份[具体蜱种名称未给出]样本通过聚合酶链反应（PCR）检测[病原体名称未给出]。在15.3%的[具体蜱种名称未给出]样本中检测到了[病原体名称未给出]。恰帕斯州的[具体蜱种名称未给出]中[病原体名称未给出]的患病率最高（24.0%），其次是塔巴斯科州和韦拉克鲁斯州（均为20.0%）、哈利斯科州（15.2%）和米却肯州（6.6%）。系统发育分析支持了[具体蜱种名称未给出]的形态鉴定，并确认了[病原体名称未给出]的基因特征。本研究是墨西哥关于[具体蜱种名称未给出]蜱中[病原体名称未给出]分子检测的首次报告。结果表明，这种三宿主蜱种可能是一种潜在的传播媒介。[具体蜱种名称未给出]是墨西哥仅次于[另一种蜱种名称未给出]的对牛吸血的第二大具有重要经济意义的蜱。关于[具体蜱种名称未给出]中[病原体名称未给出]患病率的这一信息扩展了我们对墨西哥牛无形体病流行病学的认识。需要进一步研究来评估[具体蜱种名称未给出]作为[病原体名称未给出]传播媒介的作用。
