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Updated: Jun 6, 2025

Saline Lavage for Sampling of the Canine Nasal Immune Microenvironment
Published on: December 27, 2024
Bergeyella zoohelcum strain involved in chronic canine rhinitis
Nathasha N Arechavaleta1, Gabriela M Breyer1, Franciele M Siqueira1
1Universidade Federal do Rio Grande do Sul/UFRGS, Faculdade de Medicina Veterinária, Departamento de Patologia Veterinária, Avenida Bento Gonçalves, 9090, Prédio 42704, 91540-000 Porto Alegre, RS, Brazil.
Abstract:
The pathogenesis of dog's bacterial rhinitis is poorly understudied. Bergeyella zoohelcum was isolated from an animal with chronic rhinitis as primary agent. The bacterium identification was performed by both MALDI-TOF and 16S rDNA gene sequencing. The phylogenetic relationship of the strain inside de genera was demonstrated, as well as the antimicrobial susceptibility profile and the ability of biofilm formation. We highlight the virulence profile of the B. zoohelcum in, to the best of our knowledge, the first identification of B. zoohelcum as causal agent of bacterial rhinitis in dogs.
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Bacterial Phylum Spirochaetes
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

