Content continues after advertisement

Research Note: Cross-Species Transmission of Periodontitis

Clinician's Brief (Capsule)

Sign in to Print/View PDF

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.


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.

This capsule is part of the One Health Initiative.

For global readers, a calculator to convert laboratory values, dosages, and other measurements to SI units can be found here.

All Clinician's Brief content is reviewed for accuracy at the time of publication. Previously published content may not reflect recent developments in research and practice.

Material from Clinician's Brief may not be reproduced, distributed, or used in whole or in part without prior permission of Educational Concepts, LLC. For questions or inquiries please contact us.


Clinician's Brief:
The Podcast
Listen as host Alyssa Watson, DVM, talks with the authors of your favorite Clinician’s Brief articles. Dig deeper and explore the conversations behind the content here.
Clinician's Brief provides relevant diagnostic and treatment information for small animal practitioners. It has been ranked the #1 most essential publication by small animal veterinarians for 9 years.*

*2007-2017 PERQ and Essential Media Studies

© 2022 Educational Concepts, L.L.C. dba Brief Media ™ All Rights Reserved. Terms & Conditions | DMCA Copyright | Privacy Policy | Acceptable Use Policy