Cevidanes Aitor, Barandika Jesús F, Aduriz Gorka, Hurtado Ana, García-Pérez Ana L, Barral Marta
Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain.
Transbound Emerg Dis. 2024 Dec 10;2024:8553577. doi: 10.1155/tbed/8553577. eCollection 2024.
Crimean-Congo hemorrhagic fever virus (CCHFV) causes a serious human tick-borne disease. In animals, CCHFV infections are mainly subclinical. The circulation of the virus has received little attention in areas where the main vector ( spp.) is not considered to be present or established (e.g., the Northern Iberian Peninsula). The presence of antibodies against CCHFV was evaluated in sera collected from 1190 wild boars, 36 red deer, and 36 roe deer in the Basque Country (Northern Iberian Peninsula) in 2014-2019. Antibodies were found in the three wild ungulate species with an overall prevalence of 2.5%. The highest seroprevalence was found in red deer (22.2%) and in the southwest province: Araba (8.6%). The presence of antibodies against CCHFV in wild ungulates reported in this study could be due to an underestimated presence of ticks, the sporadic exposure to infected ticks transported by animals (e.g., migratory birds), or the role of other tick species in the virus's circulation. The detection of exposed animals since 2014 suggests that the circulation of the virus beyond the southwestern regions of the Iberian Peninsula could have been more widespread than previously thought.
克里米亚-刚果出血热病毒（CCHFV）可引发一种严重的人类蜱传疾病。在动物中，CCHFV感染主要为亚临床感染。在主要传播媒介（ 属物种）被认为不存在或未定居的地区（如伊比利亚半岛北部），该病毒的传播情况鲜受关注。2014年至2019年期间，对从巴斯克地区（伊比利亚半岛北部）采集的1190头野猪、36头马鹿和36头狍的血清进行了CCHFV抗体检测。在这三种野生有蹄类动物中均发现了抗体，总体患病率为2.5%。马鹿的血清阳性率最高（22.2%），西南部的阿拉瓦省阳性率也最高（8.6%）。本研究中报告的野生有蹄类动物体内存在CCHFV抗体，可能是由于蜱的存在被低估、动物（如候鸟）偶然接触到携带病毒的蜱，或者是其他蜱种在病毒传播中发挥了作用。自2014年以来对暴露动物的检测表明，伊比利亚半岛西南部以外地区的病毒传播可能比之前认为的更为广泛。
