Streptococcus canis, the underdog of the genus

Pagnossin, D., Smith, A. , Oravcova, K. and Weir, W. (2022) Streptococcus canis, the underdog of the genus. Veterinary Microbiology, 273, 109524. (doi: 10.1016/j.vetmic.2022.109524) (PMID:35933975)

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Streptococcus canis is a multi-host pathogen that causes disease of varying severity in a wide range of mammals, including humans. Dogs and cats appear to be the primary hosts and may play a role in transmitting infection to humans. The broader epidemiology of S. canis, however, is still poorly understood, as are its virulence mechanisms, antimicrobial resistance (AMR) and population structure. In this review we gather existing knowledge on S. canis, describing its epidemiology in animals and humans and present information on virulence factors, classification schemes and AMR prevalence. We describe the main ecological niches of S. canis in companion animals, discuss potential risk factors for infection in humans and propose a multi-host transmission cycle. We show that current knowledge on S. canis virulence determinants is limited and sometimes contradictory. We illustrate the different typing systems proposed to classify S. canis. We also report the range of known AMR phenotypes and the emergence of new mechanisms of resistance. Finally, we discuss the zoonotic potential of S. canis, highlighting the need for further evidence in this area. Streptococcus canis may be regarded as a neglected pathogen of one health concern. Further research is needed for its better understanding and effective control.

Item Type:Articles
Additional Information:This work was funded by the James Herriot Scholarship, School of Veterinary Medicine, University of Glasgow.
Glasgow Author(s) Enlighten ID:Pagnossin, Mr Davide and Weir, Professor Willie and Oravcova, Dr Katarina and Smith, Professor Andrew
Authors: Pagnossin, D., Smith, A., Oravcova, K., and Weir, W.
College/School:College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
Journal Name:Veterinary Microbiology
ISSN (Online):1873-2542
Published Online:30 July 2022
Copyright Holders:Copyright © 2022 The Authors
First Published:First published in Veterinary Microbiology 273: 109524
Publisher Policy:Reproduced under a Creative Commons License

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