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Monitoring of pathogenic Leptospira infection in wolves (Canis lupus) from Spain and Italy

Leptospirosis is a bacterial disease of worldwide distribution with relevant implications for animal and human health. Different large wild carnivore species can act as reservoirs of this zoonotic pathogen. This study aimed to evaluate the circulation of Leptospira spp. in free-ranging wolves (Canis...

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Published in:Veterinary microbiology 2024-11, Vol.298, p.110222, Article 110222
Main Authors: Gonzálvez, Moisés, Cano-Terriza, David, Fayos, Manena, Moroni, Barbara, Martínez, Remigio, Robetto, Serena, Oleaga, Álvaro, Remesar, Susana, Orusa, Riccardo, Muñoz-Hernández, Clara, Velarde, Roser, García-Bocanegra, Ignacio
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Language:English
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Summary:Leptospirosis is a bacterial disease of worldwide distribution with relevant implications for animal and human health. Different large wild carnivore species can act as reservoirs of this zoonotic pathogen. This study aimed to evaluate the circulation of Leptospira spp. in free-ranging wolves (Canis lupus) from southern Europe. A total of 281 kidney samples of wolves from Spain and Italy were collected between 2017 and 2023. The presence of Leptospira DNA was analysed by real-time PCR and phylogenetic analyses were carried out using a Bayesian approach. The overall prevalence was 3.2 % (9/281; 95 %CI: 1.1–5.3). Leptospira DNA was detected in nine of the 180 wolves from Spain (5.0 %; 95 %CI: 1.8–8.2), but not in the Italian wolf population (0 %; 0/101). Molecular analyses revealed high homology between the sequences obtained in the present study and isolates of Leptospira interrogans and Leptospira borgpetersenii from different rodent and domestic ungulate species. Our results provide evidence of a low and spatially heterogeneous circulation of this pathogen in wolf populations of southern Europe. The detection of zoonotic Leptospira species in this survey supports the need to consider wolf populations in monitoring programs for leptospirosis with a One Health approach. •Occurrence of PCR-positive wolves was 5 % (9/180) in Spain and 0 % (0/ 101) in Italy.•Zoonotic L. interrogans and L. borgpetersenii were found in the wolves analyzed.•This is the first report of L. borgpetersenii in wolves.
ISSN:0378-1135
1873-2542
1873-2542
DOI:10.1016/j.vetmic.2024.110222