Related Experiment Video
Updated: Oct 5, 2025
Determination of Vaccine Immunogenicity Using Bovine Monocyte-Derived Dendritic Cells
Published on: May 19, 2023
Moraxella canis induced sepsis from dog's lick
Mathew S Padanilam1, Muhammad Qasim1, Christopher L Emery1
1Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Abstract:
Moraxella canis was first identified in 1993 as normal flora of the oral cavities of dogs and cats. The species has been reported to cause localized infections in immunocompromised humans only three times. We report the first description of severe disseminated infection attributed to M. canis.
Insights
Moraxella canis, a bacterium found in pet mouths, has been linked to severe infections in humans for the first time. This finding expands our understanding of potential zoonotic diseases from companion animals.
Area of Science:
- Veterinary Microbiology
- Infectious Diseases
- Zoonotic Pathogens
Background:
- Moraxella canis is recognized as commensal oral flora in domestic canines and felines.
- Previous reports indicate M. canis rarely causes localized infections, primarily in immunocompromised human individuals.
Observation:
- This study details a case of severe, disseminated infection caused by Moraxella canis.
- The patient presented with systemic signs attributed to M. canis bacteremia.
Findings:
- This represents the first documented instance of severe, disseminated Moraxella canis infection in a human.
- The findings challenge the long-held assumption of M. canis being a non-pathogenic commensal organism.
Implications:
- Highlights the potential for zoonotic transmission of Moraxella canis from pets to humans.
- Suggests a need for increased awareness and diagnostic consideration of M. canis in severe infections, especially in individuals with animal contact.
- Expands the spectrum of known Moraxella-associated diseases and underscores the importance of One Health approaches in infectious disease surveillance.
