{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T07:42:36Z","timestamp":1792568556708,"version":"4.5.0"},"reference-count":99,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T00:00:00Z","timestamp":1780444800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>West Nile virus (WNV) is a globally distributed mosquito-borne flavivirus with significant implications for both veterinary and public health. While horses are incidental dead-end hosts, their epidemiological role extends beyond clinical disease, as they can serve as effective sentinel hosts for detecting local viral circulation. Their frequent exposure to mosquito vectors, ability to mount measurable antibody responses, geographic stability, accessibility for monitoring, and the possibility of observation within managed owner\u2013veterinarian systems make them particularly suitable for surveillance within a One Health framework. Evidence from Europe and the Americas demonstrates that equine seroprevalence and field surveillance can identify transmission hotspots, reveal silent circulation, and contribute to the understanding of spatial and temporal risk patterns. The review also addresses key limitations, including vaccination effects, flavivirus cross-reactivity, methodological heterogeneity, and challenges in interpreting serological data across different ecological contexts. Strengthening equine sentinel surveillance through standardized methodologies and integration with predictive and geospatial approaches may improve early warning capacity and support more effective control of WNV and other emerging arboviral diseases.<\/jats:p>","DOI":"10.3390\/microorganisms14061263","type":"journal-article","created":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T13:46:48Z","timestamp":1780494408000},"page":"1263","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["West Nile Virus in Horses as a Sentinel Host in One Health Surveillance: Epidemiological Insights and Future Perspectives"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-9380-1985","authenticated-orcid":false,"given":"Paula","family":"Nistor","sequence":"first","affiliation":[{"name":"Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"},{"name":"Doctoral School \u201cVeterinary Medicine\u201d, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, Calea Aradului 119, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Livia","family":"Stanga","sequence":"additional","affiliation":[{"name":"Discipline of Microbiology, Faculty of Medicine, \u201cVictor Babes\u201d University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vlad","family":"Iorgoni","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"},{"name":"Doctoral School \u201cVeterinary Medicine\u201d, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, Calea Aradului 119, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2531-6469","authenticated-orcid":false,"given":"Alexandru","family":"Gligor","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bogdan","family":"Florea","sequence":"additional","affiliation":[{"name":"Doctoral School \u201cVeterinary Medicine\u201d, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, Calea Aradului 119, 300645 Timi\u015foara, Romania"},{"name":"Department of Internal Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vlad","family":"Cocioba","sequence":"additional","affiliation":[{"name":"Doctoral School \u201cVeterinary Medicine\u201d, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, Calea Aradului 119, 300645 Timi\u015foara, Romania"},{"name":"Department of Animal Husbandry, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8913-4942","authenticated-orcid":false,"given":"Ionica","family":"Iancu","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-0153-5533","authenticated-orcid":false,"given":"Cosmin Horatiu","family":"Maris","sequence":"additional","affiliation":[{"name":"Department of Forestry, Faculty of Engineering and Applied Technologies, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u0219oara, 300645 Timi\u0219oara, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7118-6488","authenticated-orcid":false,"given":"Viorel","family":"Herman","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences \u201cKing Mihai I\u201d from Timi\u015foara, 300645 Timi\u015foara, Romania"},{"name":"Academy of Romanian Scientists, Str. 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