Calouro Rita, de Sousa Telma, Saraiva Sónia, Fernandes Diana, Mourão Ana V, Igrejas Gilberto, Pereira José Eduardo, Poeta Patrícia
Veterinary and Animal Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
MicroART-Antibiotic Resistance Team, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
Microorganisms. 2025 Jul 30;13(8):1774. doi: 10.3390/microorganisms13081774.
This study aimed to assess the emergence and/or re-emergence of Tick-borne Diseases (TBD) in Portugal by linking the hemoparasite burden in companion animals to vector-borne disease dynamics through a One Health approach. Between 2015 and 2024, 1169 clinically suspected animals with hemoparasite infections, treated at the Hospital Veterinário de Santarém (HVS), underwent serological confirmation for , , spp., and spp. A total of 3791 serological tests (3.2 tests per animal) were performed and 437 animals tested positive for at least one of the four hemoparasites under investigation. From 2020 to 2024, tests nearly tripled from 894 to 2883, raising positive cases and prevalence from 29.5% to 39.9%, especially for rickettsiosis and hemobartonellosis, indicating an increased circulation of their vectors. A national vector surveillance initiative identified spp., , , and sp. as primary tick vectors in Portugal for the hemoparasites mentioned above and for other agents like arbovirus, such as Crimean-Congo Hemorrhagic Fever Virus (CCHFV) and tick-borne encephalitis virus (TBEV). This study found that the vectors responsible for transmitting hemoparasitosis, given the high number of serologically positive cases detected in the HVS, represent an increasing risk for TBD. These findings highlight the relevance of companion animal monitoring as an early-warning component within a One Health surveillance approach.
本研究旨在通过“同一健康”方法，将伴侣动物中的血液寄生虫负荷与媒介传播疾病动态联系起来，评估葡萄牙蜱传疾病（TBD）的出现和/或再次出现情况。2015年至2024年期间，在圣塔伦兽医医院（HVS）接受治疗的1169只临床疑似血液寄生虫感染动物，接受了针对 、 、 属和 属的血清学确认。共进行了3791次血清学检测（每只动物3.2次检测），437只动物至少对四种被调查血液寄生虫中的一种检测呈阳性。从2020年到2024年，检测数量从894次增加到2883次，几乎增加了两倍，阳性病例和患病率从29.5%上升到39.9%，尤其是立克次体病和血巴尔通体病，表明其传播媒介的活动增加。一项全国性媒介监测倡议确定 属、 、 、 和 种为葡萄牙上述血液寄生虫以及克里米亚-刚果出血热病毒（CCHFV）和蜱传脑炎病毒（TBEV）等虫媒病毒等其他病原体的主要蜱类传播媒介。本研究发现，鉴于在HVS检测到大量血清学阳性病例，负责传播血液寄生虫病的媒介对蜱传疾病构成越来越大的风险。这些发现突出了伴侣动物监测作为“同一健康”监测方法中早期预警组成部分的相关性。
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