Serosurvey of canine distemper virus in culpeo (Lycalopex culpaeus) and chilla (Lycalopex griseus) foxes of the Araucanía region, Chile
2023
Hernández, Felipe A. | Surot, Dominique | Vallverdú, Antulemu | Cueva, Michelle | Aguirre, Isabel M. | Mancilla, Edith A. | Acosta-Jamett, Gerardo
ABSTRACT: Our goal was to assess whether free-ranging foxes have been exposed to canine distemper virus (CDV) in the Araucanía region in Chile. The study was conducted at three sites in rural areas where free-ranging foxes were trapped and bled from 2009 to 2012. We sampled two species of foxes: the culpeo (Lycalopex culpaeus) (n=13) and the chilla (Lycalopex griseus) (n=14). A serum virus neutralization assay was used to detect the presence and magnitude of functional systemic antibodies to CDV. Overall, CDV seroprevalence in culpeo and chilla foxes was 7.7 and 21.4%, respectively. Exposure to CDV did not differ among the sites. Despite the relatively low seroprevalence found in free-ranging foxes, the presence of CDV-seropositive dogs previously reported in rural sites nearby, suggests a potential risk of pathogen spill over from domestic dogs to foxes in the area.
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