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oai:recercat.cat:20.500.12327/27172025-10-22T11:34:31Zcom_2072_4428com_2072_4427col_2072_487898

2025-10-22T11:34:31Z urn:hdl:20.500.12327/2717 Lack of detection of Mycobacterium microti infection in wild rodents from a free‑ranging wild boar outbreak area Vidal, Enric Espunyes, Johan Puig Ribas, Maria Melgarejo, Cristian Martino, Laura Michelet, Lorraine Boschiroli, Maria Laura Sanz, Albert Allepuz, Alberto Cabezón, Oscar Pérez de Val, Bernat Producció Animal Sanitat Animal Wild small rodents are considered the natural reservoirs of Mycobacterium microti, a member of the Mycobacterium tuberculosis complex (MTBC) that can cause tuberculosis (TB) in humans and animals, as well as interfere with current tuberculosis eradication plans in livestock. A cross-sectional study was carried out in the Catalan Pyrenees (Iberian Peninsula) in an area where M. microti was previously isolated from wild boars, to evaluate the role of micromammals in the epidemiology of this outbreak. A total of 350 wild rodents were necropsied (306 Murinae and 44 Arvicolinae) in spring and autumn during two consecutive natural years. Tissues were analyzed by histopathology to look for TB-like lesions and by qPCR and culture to detect MTBC. Sera were analyzed by MTBC-specifc ELISA. No evidence of TB infection in wild rodents was confrmed. Results suggest that small rodents did not play a role in the epidemiology of M. microti in the area. The source of this mycobacterium remains unknown, but previous detections of M. microti in various species in southern France suggest the movements of wild boars across the French Pyrenees as the most likely origin of the outbreak detected in the Iberian Peninsula. 2025-10-22T11:34:31Z 2025-10-22T11:34:31Z 2023-10-18 info:eu-repo/semantics/article Vidal, Enric, Johan Espunyes, Maria Puig Ribas, Cristian Melgarejo, Laura Martino, Lorraine Michelet, Maria Laura Boschiroli, et al. 2023. “Lack of detection of Mycobacterium microti infection in wild rodents from a free-ranging wild boar outbreak area”. European Journal of Wildlife Research 69 (6):111. doi:10.1007/s10344-023-01738-3. 1612-4642 http://hdl.handle.net/20.500.12327/2717 https://doi.org/10.1007/s10344-023-01738-3 eng European Journal of Wildlife Research EC/INTERREG-POCTEFA/EFA357-19/EU/Red de investigación y desarrollo de herramientas innovadoras para el control de la tuberculosis animal/INNOTUB http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Attribution 4.0 International Springer