Rodríguez Oscar, de la Fuente Gabriela, Fernández de Mera Isabel G, Vaz-Rodrigues Rita, Gortázar Christian, de la Fuente José
BP 30, Sidi Allal el Bahraoui 15250, Morocco.
Sabiotec, Edificio incubadora de empresas UCLM, Camino de Moledores s/n, Ciudad Real 13071, Spain.
Ticks Tick Borne Dis. 2022 Nov;13(6):102034. doi: 10.1016/j.ttbdis.2022.102034. Epub 2022 Aug 24.
Tick infestation and pathogen prevalence in ticks infesting the Saharan antelope addax (Addax nasomaculatus) are factors that may constitute a risk for both human and animal health. In this study we describe season distribution of adult Hyalomma marginatum and analyzed the tick-borne pathogens and their seroprevalence in natural-living addax in Morocco. The results showed that addax is an important host species for H. marginatum adults. The seroprevalence of Bluetongue virus (BTV; 61.5-92.3%, n = 8/13-84/91), Coxiella burnetii (36.3-69.2%, n = 33/91-9/13) and Brucella spp. (0.0-4.8%, n = 0/50-2/42) was characterized in addax during various years (sampled animals per year, n = 13-91). Presence of Aigai virus (AIGV), a recent taxonomic differentiation of Crimean-Congo hemorrhagic fever virus (CCHFV) of 100% (4/4, years 2016 and 2017) together with Babesia ovis (75%, 3/4, year 2014), Anaplasma spp. (75%, 3/4, year 2014), Rickettsia spp. (50%, 2/4, year 2014) and Theileria spp. (25%, 1/4, year 2014) was observed in H. marginatum collected from the addax (4 pools of 10 adult ticks each). The results support the role of addax host in H. marginatum life cycle and exposure to AIGV and other tick-borne pathogens. The development of control interventions including anti-tick vaccines for wildlife species will contribute to the implementation of effective measures for the prevention and control of tick-borne diseases and might be relevant for the preservation of this threatened species and others such as Arabian oryx (Oryx leucoryx) and African elk (Taurotragus oryx) that share habitat.
寄生在撒哈拉羚羊旋角羚（Addax nasomaculatus）身上的蜱虫侵扰情况以及蜱虫体内病原体的流行情况，可能对人类和动物健康构成风险。在本研究中，我们描述了成年边缘璃眼蜱（Hyalomma marginatum）的季节分布，并分析了摩洛哥自然环境中生活的旋角羚体内蜱传播病原体及其血清阳性率。结果表明，旋角羚是成年边缘璃眼蜱的重要宿主物种。在不同年份（每年采样动物数量，n = 13 - 91）的旋角羚中，检测到蓝舌病毒（BTV；61.5 - 92.3%，n = 8/13 - 84/91）、伯氏考克斯体（Coxiella burnetii；36.3 - 69.2%，n = 33/91 - 9/13）和布鲁氏菌属（Brucella spp.；0.0 - 4.8%，n = 0/50 - 2/42）的血清阳性率。从旋角羚身上采集的边缘璃眼蜱（每组4个样本，每个样本包含10只成年蜱虫）中，检测到艾盖病毒（Aigai virus，AIGV），它是克里米亚-刚果出血热病毒（Crimean-Congo hemorrhagic fever virus，CCHFV）的一个近期分类变种，阳性率为100%（4/4，2016年和2017年），同时还检测到绵羊巴贝斯虫（Babesia ovis，75%，3/4，2014年）、无形体属（Anaplasma spp.，75%，3/4，2014年）、立克次体属（Rickettsia spp.，50%，2/4，2014年）和泰勒虫属（Theileria spp.，25%，1/4，2014年）。这些结果支持了旋角羚宿主在边缘璃眼蜱生命周期以及接触AIGV和其他蜱传播病原体方面所起的作用。制定包括针对野生动物物种的抗蜱疫苗在内的控制干预措施，将有助于实施有效的蜱传播疾病预防和控制措施，并且可能与保护这种濒危物种以及其他共享栖息地的物种，如阿拉伯大羚羊（Oryx leucoryx）和非洲大羚羊（Taurotragus oryx）相关。
