RT Journal Article T1 Non-invasive surveillance of shared pathogens in the Eurasian brown bear (Ursus arctos) human interface A1 Herrero García, Gloria A1 Barroso, Patricia A1 Dashti, Alejandro A1 González Barrio, David A1 Naves, Javier A1 Fernández-Gil, Alberto A1 Ugarte Ruiz, María A1 Pérez Sancho, Marta A1 Royo, Luis José A1 Carmena, David A1 De Miguel, Arturo A1 García Rodríguez, Alberto A1 Gortázar, Christian A1 Domínguez Rodríguez, Lucas José A1 Balseiro, Ana AB Multi-host communities are perfect scenarios for the emergence and spread of pathogens, threatening the recovery of endangered, isolated, or inbred populations, such as the brown bear (Ursus arctos) in northwestern Spain. The population recovery in recent years has forced bears to occupy highly anthropized areas, increasing their interaction with human and domestic animals, with potential consequences for global health. During 2022-2023 a survey of parasites, bacteria and viruses shared between wildlife, domestic animals and humans was performed in this population using non-invasive surveillance, i.e., bear fecal samples (n = 73) and sponge-based sampling of trees (n = 42; 14 rubbed trees and 28 control trees). Pathogen detection rates were defined as the percentage of qPCR or culture-positive samples. Generalized linear models were fitted to assess their relationship with environmental variables including dispersion of the human population, and percentage of agricultural and periurban habitats in a 6 km-buffer around each sample. Canine Adenovirus type 1 (45.2%), Giardia spp. (15.1%), Salmonella spp. (12.3%), and extended-spectrum-beta-lactamases (ESBL) Escherichia coli (1.4%) were identified in fecal samples. In contrast, only five sponges from three rubbed and two control trees resulted positive to E. coli (14.3%). The results suggest that several pathogens are common in the Cantabrian brown bear population and that anthropization of the territory modulates their prevalence and richness. The effective design of management programs for bear conservation will require a one-health approach, in which genetic analysis of non-invasive samples can be key tools for the sanitary surveillance at the wildlife-livestock-human interface. PB Elsevier YR 2024 FD 2024-05-03 LK https://hdl.handle.net/20.500.14352/104506 UL https://hdl.handle.net/20.500.14352/104506 LA eng NO Herrero-Garcia G*, Barroso P, Dashti A, Gonzalez-Barrio D, Naves J, Fernandez-Gil A, Ugarte-Ruiz M, Perez-Sancho M, Royo JL, Carmena D, de Miguel A, Garcia-Rodriguez A, Gortazar C, Dominguez L and Balseiro A. Non-invasive surveillance of shared pathogens in the Eurasian brown bear (Ursus arctos) human interface. One Health, 18:100746. 2024. (A). ISSN: 2352-7714. Impact factor 2022: 5.000. Category: Public, Environmental & Occupational Health, Quartile: 1, Position: 48 of 207 of 207. DOI: 10.1016/j.onehlt.2024.100746 NO European Commission NO Principado de Asturias NO Junta de Castilla y Leon NO Ministerio de Ciencia, Innovación y Universidades (España) NO Instituto de Salud Carlos III NO Ministerio de Economía, Comercio y Empresa (España) DS Docta Complutense RD 17 abr 2025