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Updated: Jun 15, 2026

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model
Published on: July 1, 2018
Streptococcus suis: a new emerging or an old neglected zoonotic pathogen?
Marcelo Gottschalk1, Jianguo Xu, Cynthia Calzas
1Streptococcus suis Research Laboratory & International Reference Laboratory for S. suis Serotyping, Département de Pathologie et Microbiologie, Université de Montréal, CP 5000, St-Hyacinthe, Québec, Canada. marcelo.gottschalk@umontreal.ca
Streptococcus suis infections pose a global threat to swine and humans, causing zoonotic diseases. A 2005 China outbreak highlighted severe human Streptococcus suis cases, increasing research interest.
Area of Science:
- Veterinary Medicine
- Infectious Diseases
- Public Health
Background:
- Streptococcus suis is a significant pathogen in swine, causing economic losses globally.
- It is also an agent of zoonosis, posing risks to humans handling infected pigs or products.
- Sporadic human S. suis infections, primarily meningitis, have been documented over 40 years.
Purpose of the Study:
- To critically review current knowledge on Streptococcus suis infections in humans.
- To discuss potential explanations for the severe 2005 outbreak in China.
- To examine the impact of the outbreak on scientific research and community attention.
Main Methods:
- Literature review of Streptococcus suis infections in humans and swine.
- Analysis of S. suis pathogenicity and zoonotic potential.
- Discussion of epidemiological factors and hypotheses related to the 2005 outbreak.
Main Results:
- The 2005 China outbreak demonstrated increased severity in human S. suis infections, including rapid progression and higher mortality.
- A notable increase in publications and reported human cases of S. suis has occurred recently.
- The outbreak significantly heightened scientific and public attention towards S. suis.
Conclusions:
- Streptococcus suis remains a critical pathogen with significant zoonotic implications.
- The 2005 outbreak underscored the need for further research into S. suis virulence and transmission.
- Enhanced surveillance and understanding are crucial for managing S. suis in both animal and human health.
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