Wildlife species are an important reservoir of mycobacterial infections that may jeopardise efforts to control and eradicate bovine tuberculosis (bTB), caused by Mycobacterium bovis. Slovenia is officially free of bTB, but no data on the presence of mycobacteria in wild animals has been reported. In this study, samples of liver and lymph nodes were examined from 306 apparently healthy free-range wild animals of 13 species in Slovenia belonging to the families Cervidae, Suidae, Canidae, Mustelidae and Bovidae. Mycobacteria were isolated from 36/306 (11.8%) animals (red deer, roe deer, fallow deer, wild boar and jackal) and identified by PCR, commercial diagnostic kits and sequencing. Non-tuberculous mycobacteria identified in five species were Mycobacterium peregrinum, M. avium subsp. hominissuis, M. intracellulare, M. confluentis, M. fortuitum, M. terrae, M. avium subsp. avium, M. celatum, M. engbaekii, M. neoaurum, M. nonchromogenicum and M. vaccae.
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