Key result
A newly detected pestivirus in French Pyrenean chamois grouped phylogenetically with a novel Spanish chamois pestivirus, suggesting cross-species transmission from domestic sheep is unlikely.
A newly described pestivirus in Pyrenean chamois in France groups with border disease viruses but is distinct from domestic sheep strains, suggesting cross-species transmission from sheep is unlikely.
Distinct pestivirus lineage in Pyrenean chamois suggests limited sheep spillover; leaves open transmission dynamics and wildlife surveillance needs.
A pestivirus was detected and characterized in chamois (Rupicapra pyrenaica pyrenaica) originating from the French part of the Pyrenees. Phylogenetic analysis of the pestivirus was done on the basis of a fragment from the 5' noncoding region including 22 published nucleotide sequences of different pestivirus strains. Our strain was grouped within the clade of border disease viruses (BDV). However, it had an intermediate position between clade BDV and classical swine fever viruses representing a basal position to BDV strains of domestic sheep. Our strain was grouped as a sister unit to a novel pestivirus (Chamois-1) recently described from chamois in Spain. Therefore, we postulate that this virus occurs in the entire population of Pyrenean chamois. On the basis of the phylogenetic grouping of this isolate, a postulated cross-species transmission of pestivirus from domestic sheep to chamois via shared pastures seems to be unlikely.
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Frölich et al. (2005) studied Pestivirus infection. Pestivirus detection and phylogenetic analysis was evaluated on Phylogenetic grouping. A newly detected pestivirus in French Pyrenean chamois grouped phylogenetically with a novel Spanish chamois pestivirus, suggesting cross-species transmission from domestic sheep is unlikely.
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