2026-07-22T01:50:01Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/265422025-12-18T12:59:03Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19609

00925njm 22002777a 4500 dc Herrero-García, Gloria author Barroso, Patricia author Dashti, Alejandro author Gonzalez-Barrio, David author Naves, Javier author Fernández-Gil, Alberto author Ugarte-Ruiz, María author Pérez-Sancho, Marta author Royo, Luis José author Carmena, David author de Miguel, Arturo author García-Rodríguez, Alberto author Gortázar, Christian author Domínguez, Lucas author Balseiro, Ana author 2024-06 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. Herrero-García G, Barroso P, Dashti A, González-Barrio D, Naves J, Fernández-Gil A, Ugarte-Ruiz M, Pérez-Sancho M, Royo LJ, Carmena D, de Miguel A, García-Rodríguez A, Gortázar C, Domínguez L, Balseiro A. Non-invasive surveillance of shared pathogens in the Eurasian brown bear (Ursus arctos) human interface. One Health. 2024 May 3;18:100746. 10.1016/j.onehlt.2024.100746 2352-7714 One health 38746539 https://hdl.handle.net/20.500.12105/26542 Brown bear (Ursus arctos) Canine Adenovirus type 1 (CAdV-1) Conservation Giardia spp. Interface Non-invasive surveillance Salmonella spp. Non-invasive surveillance of shared pathogens in the Eurasian brown bear (Ursus arctos) human interface