Related Experiment Video
Updated: Jul 8, 2026
06:51
Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
Published on: December 10, 2016
Key research issues in Clostridium difficile
1Department of Medical Microbiology, Faculty of Medicine, University of Manitoba.
Summary
Clostridium difficile infections pose a significant healthcare challenge. Research priorities include diagnosis, prevention, antibiotic stewardship, and clinical management to combat this emerging pathogen.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Public Health
Background:
- Clostridium difficile is an emerging pathogen causing significant nosocomial infections, specifically C. difficile-associated diarrhea.
- Controlling C. difficile infections is challenging due to antimicrobial resistance, environmental contamination, and host factors.
- Existing knowledge gaps necessitate further research into effective management strategies.
Purpose of the Study:
- To summarize key research issues concerning Clostridium difficile infections in Canada.
- To provide a platform for discussion on C. difficile and its health impact.
- To identify critical research areas and explore funding and collaboration opportunities.
Main Methods:
- A national symposium, the Clostridium difficile Symposium on Emerging Issues and Research, was convened.
- Key research issues were identified and discussed across four major themes.
- The report synthesizes findings from the symposium discussions.
Main Results:
- Identified key research priorities in diagnosis and surveillance of C. difficile infections.
- Highlighted critical areas in infection prevention and control strategies.
- Emphasized the importance of antibiotic stewardship and clinical management.
Conclusions:
- Further research is crucial to address the challenges posed by Clostridium difficile.
- Collaboration and funding are essential to advance C. difficile research in Canada.
- A comprehensive approach encompassing diagnosis, prevention, stewardship, and management is needed.
Related Concept Videos
01:12Bacterial Toxins
Bacterial toxins are sophisticated virulence factors that enable pathogenic bacteria to interact with, invade, and damage host tissues. These toxins fall broadly into two types: protein exotoxins, which are secreted into the environment and target specific host receptors, and lipopolysaccharide endotoxins, which are structural components of the bacterial outer membrane released primarily during bacterial lysis or membrane shedding. Exotoxins generally act more selectively, binding to cell...
01:25Clinical Significance of Antibiotic Resistance
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
01:18Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
01:20Determinants of Bacterial Pathogenicity and Virulence
Pathogenic bacteria employ a variety of strategies to establish infections, including the secretion of extracellular enzymes that act as potent virulence factors. These enzymes facilitate bacterial colonization of host tissues and help evade immune surveillance. By targeting structural components of host tissues and interfering with immune mechanisms, these enzymes play a pivotal role in disease progression.Extracellular Enzymes Facilitating Tissue Invasion: Several bacterial pathogens secrete...
01:18Bacterial Gastroenteritis
Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...