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Research Note: Cross-Species Transmission of Periodontitis

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Periodontal disease is common in dogs, and bacterial agents play a large role in its cause. In humans, periodontal disease is commonly caused by Treponema denticola, Tannerella forsythia, and Porphyromonas gingivalis, collectively referred to as the red complex bacteria (RCB). In this study, when subgingival samples were collected from 73 dogs, RCB were found in only 4.1% of the dogs; however, 49.3% of the samples demonstrated coinfection with P gingivalis and T forsythia; this was significantly correlated with the presence of periodontal disease. As it is possible that transmission of oral bacteria between humans and dogs can occur, these findings may have zoonotic implications.

Source

Periodontal disease associated with red complex bacteria in dogs. Di Bello A, Buonavoglia A, Franchini D, et al. J SMALL ANIM PRACT 55:160-163, 2014.

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