Grupo de Investigación Evolución, Sistemática Y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Santa Marta, Colombia.
Exp Appl Acarol. 2020 Sep;82(1):137-150. doi: 10.1007/s10493-020-00531-0. Epub 2020 Aug 18.
Tick-borne diseases constitute a problem for livestock and public health. Given the socio-economic and environmental conditions of the Colombian Caribbean, ticks are particularly abundant, in turn exposing domestic animals and people in contact with them to such diseases. This study evaluates the presence of Babesia spp., Anaplasma spp., Coxiella spp. and Borrelia spp. in domestic animal ticks (Amblyomma mixtum, A. dissimile, Dermacentor nitens, Rhipicephalus sanguineus and R. microplus) by conventional PCR. Findings show a prevalence of 12.5% of Babesia, 0% of Borrelia, 39.4% of Anaplasma and 52.9% of Coxiella, whereas 6.2% of a total sample of 104 tick pools presented coinfections between Babesia and Anaplasma. Among the molecularly identified species are Ba. vogeli, Ba. bigemina and A. marginale, in addition to two Coxiella species-one being C. mudrowiae and the other similar to an undescribed endosymbiont of Rhipicephalus sp. It is necessary to evaluate the vector capacity of ticks such as A. mixtum, D. nitens and R. sanguineus in the transmission of A. marginale. Moreover, it is necessary to explore the role that bacteria of the genus Coxiella might have both in the health of humans and animals, and in the metabolism and reproduction of ticks. This is the first report on Babesia vogeli and B. bigemina in ticks from the Colombian Caribbean, representing a risk to animal and human health.
蜱传疾病对畜牧业和公共卫生构成了威胁。鉴于哥伦比亚加勒比地区的社会经济和环境条件，蜱虫特别多，这反过来又使家畜和接触它们的人容易感染此类疾病。本研究通过常规 PCR 评估了家畜蜱虫（安氏革蜱、钝缘革蜱、硝皮血蜱、血红扇头蜱和微小牛蜱）中巴贝斯虫属、巴尔通体属、无形体属和柯克斯体属的存在情况。结果显示，巴贝斯虫的流行率为 12.5%，巴尔通体属为 0%，无形体属为 39.4%，柯克斯体属为 52.9%，而在总共 104 个蜱虫群的样本中，有 6.2%存在巴贝斯虫属和无形体属的混合感染。在分子鉴定的物种中，有巴贝斯虫属的沃格尔巴贝斯虫、巴贝斯虫属的双芽巴贝斯虫和边缘无形体，此外还有两种柯克斯体，一种是 C. mudrowiae，另一种与未描述的革蜱属内共生菌相似。有必要评估安氏革蜱、硝皮血蜱和血红扇头蜱等蜱虫的媒介能力，以了解其在边缘无形体传播中的作用。此外，有必要探索柯克斯体属细菌在人类和动物健康以及蜱虫代谢和繁殖中的作用。这是关于哥伦比亚加勒比地区蜱虫中的巴贝斯虫属沃格尔巴贝斯虫和巴贝斯虫属双芽巴贝斯虫的首次报告，这对动物和人类健康构成了威胁。
